10-Q
 
    UNITED STATES SECURITIES AND
    EXCHANGE COMMISSION
    Washington, D.C.
    20549
 
    Form 10-Q
 
 
    |  |  |  | 
| 
    þ
    
 |  | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 | 
|  |  | For the quarterly period ended
    March 31, 2008 | 
 
 
    Commission file number 1-6571
 
    SCHERING-PLOUGH
    CORPORATION
    (Exact name of registrant as
    specified in its charter)
 
 
    |  |  |  | 
| New Jersey State or other jurisdiction of
 incorporation or organization
 |  | 22-1918501 (I.R.S. Employer
 identification No.)
 | 
|  |  |  | 
| 2000 Galloping Hill Road, Kenilworth, NJ (Address of principal
    executive offices)
 |  | 07033 Zip
    Code
 | 
 
    Registrant’s telephone number, including area code:
    (908) 298-4000
 
 
    Indicate by check mark whether the registrant (1) has filed
    all reports required to be filed by Section 13 or 15(d) of
    the Securities Exchange Act of 1934 during the preceding
    12 months (or for such shorter period that the registrant
    was required to file such reports), and (2) has been
    subject to such filing requirements for the past
    90 days.  Yes þ     No o
    
 
    Indicate by check mark whether the registrant is a large
    accelerated filer, an accelerated filer, a non-accelerated
    filer, or a smaller reporting company. See the definitions of
    “large accelerated filer,” “accelerated
    filer” and “smaller reporting company” in Rule
    12b-2 of the
    Exchange Act. (Check one):
 
    |  |  |  |  |  |  |  | 
| 
    Large accelerated
    filer þ
    
 |  | Accelerated
    filer o |  | Non-accelerated
    filer o |  | Smaller reporting
    company o | 
|  |  | (Do not check if a smaller reporting company) | 
 
    Indicate whether the registrant is a shell company (as defined
    in
    Rule 12b-2
    of the
    Act).  Yes o     No þ
    
 
    Common Shares Outstanding as of March 31, 2008:
    1,621,414,244
 
 
TABLE OF CONTENTS
 
    PART I.
    FINANCIAL INFORMATION
 
    |  |  | 
    | Item 1. | Financial
    Statements | 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    STATEMENTS
    OF CONDENSED CONSOLIDATED OPERATIONS
 
    (Unaudited)
    (Amounts in millions, except per share figures)
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  | 
| 
    Net sales
 |  | $ | 4,657 |  |  | $ | 2,975 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Cost of sales
 |  |  | 2,137 |  |  |  | 937 |  | 
| 
    Selling, general and administrative
 |  |  | 1,676 |  |  |  | 1,213 |  | 
| 
    Research and development
 |  |  | 880 |  |  |  | 707 |  | 
| 
    Other expense/(income), net
 |  |  | 95 |  |  |  | (48 | ) | 
| 
    Special and acquisition-related charges
 |  |  | 23 |  |  |  | 1 |  | 
| 
    Equity income
 |  |  | (517 | ) |  |  | (487 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Income before income taxes
 |  |  | 363 |  |  |  | 652 |  | 
| 
    Income tax expense
 |  |  | 72 |  |  |  | 87 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Net income
 |  |  | 291 |  |  |  | 565 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Preferred stock dividends
 |  |  | 38 |  |  |  | 22 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Net income available to common shareholders
 |  | $ | 253 |  |  | $ | 543 |  | 
|  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Diluted earnings per common share
 |  | $ | 0.15 |  |  | $ | 0.36 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Basic earnings per common share
 |  | $ | 0.16 |  |  | $ | 0.37 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Dividends per common share
 |  | $ | 0.065 |  |  | $ | 0.065 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    The accompanying notes are an integral part of these Condensed
    Consolidated Financial Statements.
    
    2
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    STATEMENTS
    OF CONDENSED CONSOLIDATED CASH FLOWS
 
    (Unaudited)
    (Amounts in millions)
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  | 
| 
    Operating Activities:
 |  |  |  |  |  |  |  |  | 
| 
    Net income
 |  | $ | 291 |  |  | $ | 565 |  | 
| 
    Adjustments to reconcile net income to net cash provided by
    operating activities:
 |  |  |  |  |  |  |  |  | 
| 
    Depreciation and amortization
 |  |  | 876 |  |  |  | 119 |  | 
| 
    Accrued share-based compensation
 |  |  | 60 |  |  |  | 42 |  | 
| 
    Special and acquisition-related charges and payments
 |  |  | — |  |  |  | (388 | ) | 
| 
    Purchase of derivative currency option
 |  |  | — |  |  |  | (130 | ) | 
| 
    Changes in assets and liabilities:
 |  |  |  |  |  |  |  |  | 
| 
    Accounts receivable
 |  |  | (383 | ) |  |  | (233 | ) | 
| 
    Inventories
 |  |  | (138 | ) |  |  | 74 |  | 
| 
    Prepaid expenses and other assets
 |  |  | 78 |  |  |  | (99 | ) | 
| 
    Accounts payable and other liabilities
 |  |  | (322 | ) |  |  | (198 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Net cash provided by/(used for) operating activities
 |  |  | 462 |  |  |  | (248 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Investing Activities:
 |  |  |  |  |  |  |  |  | 
| 
    Capital expenditures
 |  |  | (175 | ) |  |  | (139 | ) | 
| 
    Dispositions of property and equipment
 |  |  | 27 |  |  |  | — |  | 
| 
    Purchases of short-term investments
 |  |  | — |  |  |  | (1,012 | ) | 
| 
    Maturities of short-term investments
 |  |  | 25 |  |  |  | 1,278 |  | 
| 
    Other, net
 |  |  | — |  |  |  | (14 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Net cash (used for)/provided by investing activities
 |  |  | (123 | ) |  |  | 113 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Financing Activities:
 |  |  |  |  |  |  |  |  | 
| 
    Cash dividends paid to common shareholders
 |  |  | (105 | ) |  |  | (82 | ) | 
| 
    Cash dividends paid to preferred shareholders
 |  |  | (38 | ) |  |  | (22 | ) | 
| 
    Net change in short-term borrowings
 |  |  | (36 | ) |  |  | 4 |  | 
| 
    Stock option exercises
 |  |  | 2 |  |  |  | 52 |  | 
| 
    Other, net
 |  |  | (7 | ) |  |  | — |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Net cash used for financing activities
 |  |  | (184 | ) |  |  | (48 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Effect of exchange rates on cash and cash equivalents
 |  |  | 20 |  |  |  | 2 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Net increase/(decrease) in cash and cash equivalents
 |  |  | 175 |  |  |  | (181 | ) | 
| 
    Cash and cash equivalents, beginning of period
 |  |  | 2,279 |  |  |  | 2,666 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Cash and cash equivalents, end of period
 |  | $ | 2,454 |  |  | $ | 2,485 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    The accompanying notes are an integral part of these Condensed
    Consolidated Financial Statements.
    
    3
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    CONDENSED
    CONSOLIDATED BALANCE SHEETS
 
    (Unaudited)
    (Amounts in millions, except per share figures)
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | March 31, 
 |  |  | December 31, 
 |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  | 
| 
    ASSETS
 | 
| 
    Current Assets:
 |  |  |  |  |  |  |  |  | 
| 
    Cash and cash equivalents
 |  | $ | 2,454 |  |  | $ | 2,279 |  | 
| 
    Short-term investments
 |  |  | 7 |  |  |  | 32 |  | 
| 
    Accounts receivable, net
 |  |  | 3,363 |  |  |  | 2,841 |  | 
| 
    Inventories
 |  |  | 3,741 |  |  |  | 4,073 |  | 
| 
    Deferred income taxes
 |  |  | 442 |  |  |  | 349 |  | 
| 
    Prepaid expenses and other current assets
 |  |  | 1,217 |  |  |  | 1,272 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total current assets
 |  |  | 11,224 |  |  |  | 10,846 |  | 
| 
    Property, plant and equipment
 |  |  | 10,792 |  |  |  | 10,354 |  | 
| 
    Less accumulated depreciation
 |  |  | 3,609 |  |  |  | 3,338 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Property, net
 |  |  | 7,183 |  |  |  | 7,016 |  | 
| 
    Goodwill
 |  |  | 3,053 |  |  |  | 2,937 |  | 
| 
    Other intangible assets, net
 |  |  | 7,271 |  |  |  | 7,004 |  | 
| 
    Other assets
 |  |  | 1,389 |  |  |  | 1,353 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total assets
 |  | $ | 30,120 |  |  | $ | 29,156 |  | 
|  |  |  |  |  |  |  |  |  | 
|  | 
| 
    LIABILITIES AND SHAREHOLDERS’ EQUITY
 | 
| 
    Current Liabilities:
 |  |  |  |  |  |  |  |  | 
| 
    Accounts payable
 |  | $ | 1,912 |  |  | $ | 1,762 |  | 
| 
    Short-term borrowings and current portion of long-term debt
 |  |  | 487 |  |  |  | 461 |  | 
| 
    Income taxes
 |  |  | 455 |  |  |  | 617 |  | 
| 
    Accrued compensation
 |  |  | 804 |  |  |  | 995 |  | 
| 
    Other accrued liabilities
 |  |  | 2,165 |  |  |  | 2,208 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total current liabilities
 |  |  | 5,823 |  |  |  | 6,043 |  | 
| 
    Long-term Liabilities:
 |  |  |  |  |  |  |  |  | 
| 
    Long-term debt, net of current portion
 |  |  | 9,349 |  |  |  | 9,019 |  | 
| 
    Deferred income taxes
 |  |  | 1,809 |  |  |  | 1,701 |  | 
| 
    Other long-term liabilities
 |  |  | 2,106 |  |  |  | 2,008 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total long-term liabilities
 |  |  | 13,264 |  |  |  | 12,728 |  | 
| 
    Commitments and contingent liabilities (Note 17)
 |  |  |  |  |  |  |  |  | 
| 
    Shareholders’ Equity:
 |  |  |  |  |  |  |  |  | 
| 
    2007 mandatory convertible preferred shares —
    $1 par value; $250 per share face value; issued: 10 at
    March 31, 2008 and December 31, 2007
 |  |  | 2,500 |  |  |  | 2,500 |  | 
| 
    Common shares — authorized shares: 2,400,
    $.50 par value; issued: 2,111 at March 31, 2008 and
    December 31, 2007
 |  |  | 1,056 |  |  |  | 1,055 |  | 
| 
    Paid-in capital
 |  |  | 4,877 |  |  |  | 4,815 |  | 
| 
    Retained earnings
 |  |  | 8,001 |  |  |  | 7,856 |  | 
| 
    Accumulated other comprehensive loss
 |  |  | (93 | ) |  |  | (534 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total
 |  |  | 16,341 |  |  |  | 15,692 |  | 
| 
    Less treasury shares: 490 at March 31, 2008 and
    December 31, 2007; at cost
 |  |  | 5,308 |  |  |  | 5,307 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total shareholders’ equity
 |  |  | 11,033 |  |  |  | 10,385 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total liabilities and shareholders’ equity
 |  | $ | 30,120 |  |  | $ | 29,156 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    The accompanying notes are an integral part of these Condensed
    Consolidated Financial Statements.
    
    4
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
    (Unaudited)
 
 
    These unaudited Condensed Consolidated Financial Statements of
    Schering-Plough Corporation and subsidiaries (Schering-Plough),
    included herein have been prepared pursuant to the rules and
    regulations of the Securities and Exchange Commission (SEC) for
    reporting on
    Form 10-Q.
    Certain information and disclosures normally included in
    financial statements prepared in accordance with
    U.S. Generally Accepted Accounting Principles have been
    condensed or omitted pursuant to such SEC rules and regulations.
    These statements should be read in conjunction with the
    accounting policies and notes to consolidated financial
    statements included in Schering-Plough’s 2007
    10-K/A.
 
    In the opinion of Schering-Plough’s management, the
    financial statements reflect all adjustments necessary for a
    fair presentation of the statements of operations, cash flows
    and financial position for the interim periods presented.
 
    In November 2007, Schering-Plough acquired Organon BioSciences
    N.V. (OBS), a company that discovers, develops and manufactures
    human prescription and animal health products. See Note 2,
    “Acquisition,” for additional information.
 
    Impact
    of Recently Issued Accounting Standards
 
    In September 2006, the Financial Accounting Standards Board
    (FASB) issued Statement of Financial Accounting Standards (SFAS)
    No. 157, “Fair Value Measurements.” The standard
    defines fair value, establishes a framework for measuring fair
    value in accordance with Generally Accepted Accounting
    Principles, and expands disclosures about fair value
    measurements. The standard codifies the definition of fair value
    as the price that would be received to sell an asset or paid to
    transfer a liability in an orderly transaction between market
    participants at the measurement date. The standard clarifies the
    principle that fair value should be based on the assumptions
    market participants would use when pricing the asset or
    liability and establishes a fair value hierarchy that
    prioritizes the information used to develop those assumptions.
    For calendar-year companies, the standard became effective
    January 1, 2008 (see Note 15, “Fair Value
    Measurements”) except for non-financial items measured on a
    non-recurring basis for which it is effective beginning
    January 1, 2009. The implementation of this standard did
    not have a material impact on Schering-Plough’s financial
    statements. Based on Schering-Plough’s current financial
    position, the impact of the provisions of this standard that
    will be effective January 1, 2009 is not expected to be
    material.
 
    In November 2006, the FASB issued Emerging Issues Task Force
    (EITF) Issue
    No. 06-10,
    “Accounting for Deferred Compensation and Postretirement
    Benefits Aspects of Collateral Assignment Split-Dollar Life
    Insurance Arrangements,” which became effective for
    calendar-year companies on January 1, 2008. The Task Force
    concluded that an employer should recognize a liability for the
    postretirement benefit related to a collateral assignment
    split-dollar life insurance arrangement in accordance with
    either FASB Statement No. 106 or APB Opinion No. 12
    based on the substantive agreement with the employee. The Task
    Force also concluded that an employer should recognize and
    measure an asset based on the nature and substance of the
    collateral assignment split-dollar life insurance arrangement.
    The implementation of this standard did not have a material
    impact on Schering-Plough’s financial statements.
 
    In February 2007, the FASB issued SFAS No. 159,
    “The Fair Value Option for Financial Assets and Financial
    Liabilities-Including an Amendment of FASB Statement
    No. 115” (SFAS 159), which permits entities to
    choose to measure many financial instruments and certain other
    items at fair value. SFAS 159 also includes an amendment to
    SFAS No. 115, “Accounting for Certain Investments
    in Debt and Equity Securities,” which applies to all
    entities with available-for-sale and trading securities. For
    calendar-year companies, the standard became effective
    January 1, 2008. Schering-Plough chose not to elect the
    fair value option prescribed
    
    5
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    by SFAS 159. As a result, the implementation of this
    standard did not have a material impact on
    Schering-Plough’s financial statements.
 
    In June 2007, the FASB issued EITF Issue
    No. 07-3,
    “Accounting for Nonrefundable Advance Payments for Goods or
    Services Received for Use in Future Research and Development
    Activities,” which became effective for calendar-year
    companies on January 1, 2008. The Task Force concluded that
    non-refundable advance payments for goods or services that will
    be used or rendered for future research and development
    activities should be deferred and capitalized. Such amounts
    should be recognized as an expense as the related goods are
    delivered or the services are performed, or when the goods or
    services are no longer expected to be provided. The
    implementation of this standard did not have a material impact
    on Schering-Plough’s financial statements.
 
    In December 2007, the FASB issued EITF Issue
    No. 07-1,
    “Accounting for Collaborative Arrangements,” which is
    effective for calendar-year companies beginning January 1,
    2009. The Task Force clarified the manner in which costs,
    revenues and sharing payments made to, or received by, a partner
    in a collaborative arrangements should be presented in the
    income statement and set forth certain disclosures that should
    be required in the partners’ financial statements.
    Schering-Plough is currently assessing the potential impacts of
    implementing this standard.
 
    In December 2007, the SEC issued Staff Accounting Bulletin (SAB)
    No. 110, which permits entities, under certain
    circumstances, to continue to use the “simplified”
    method of estimating the expected term of “plain
    vanilla” options as discussed in SAB No. 107 and
    in accordance with SFAS 123R. The guidance in this release
    became effective January 1, 2008. The implementation of
    this standard did not have a material impact on
    Schering-Plough’s financial statements.
 
    In December 2007, the FASB issued SFAS No. 141
    (revised 2007), “Business Combinations,”
    (SFAS 141R). For calendar-year companies, the standard is
    applicable to new business combinations occurring on or after
    January 1, 2009. SFAS 141R requires an acquiring
    entity to recognize all the assets acquired and liabilities
    assumed in a transaction at the acquisition-date fair value with
    limited exceptions. Most significantly, SFAS 141R will
    require that acquisition costs generally be expensed as
    incurred, certain acquired contingent liabilities be recorded at
    fair value, and acquired in-process research and development be
    recorded at fair value as an indefinite-lived intangible asset
    at the acquisition date. The standard will also impact certain
    unresolved matters related to purchase transactions consummated
    prior to the effective date of the standard. Schering-Plough is
    currently assessing the potential impacts of implementing this
    standard.
 
    In December 2007, the FASB issued SFAS No. 160,
    “Noncontrolling Interests in Consolidated Financial
    Statements — An Amendment of ARB No. 51,”
    which is effective for calendar-year companies beginning
    January 1, 2009. The standard establishes new accounting
    and reporting standards for the noncontrolling interest in a
    subsidiary and for the deconsolidation of a subsidiary.
    Schering-Plough is currently assessing the potential impacts of
    implementing this standard.
 
    In March 2008, the FASB issued SFAS No. 161,
    “Disclosures about Derivative Instruments and Hedging
    Activities, an Amendment of FASB Statement No. 133,”
    which is effective for calendar-year companies beginning
    January 1, 2009. The standard enhances required disclosures
    regarding derivatives and hedging activities. Schering-Plough is
    currently assessing the potential impacts of implementing this
    standard.
 
 
    Schering-Plough acquired Organon BioSciences N.V. (OBS) for a
    purchase price of approximately Euro 11 billion in
    cash, or approximately $16.1 billion (including legal and
    professional fees) on November 19, 2007 (the Acquisition
    Date). This acquisition added further diversification of
    marketed products, including two new therapeutic areas
    (Women’s Health and Central Nervous System), as well as
    significant strength in Animal Health products and the research
    and development pipeline. The purchase method of accounting was
    
    6
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    used to account for the transaction in accordance with
    SFAS No. 141, “Business Combinations.” The
    operating results of OBS are included in Schering-Plough’s
    consolidated financial statements for the period subsequent to
    the Acquisition Date.
 
    A preliminary allocation of the purchase price of OBS was made
    as of the Acquisition Date. This allocation of the purchase
    price remains subject to the finalization of
    Schering-Plough’s management analysis of the fair value of
    the assets acquired (including assets related to pension plans)
    and liabilities assumed of OBS as of the Acquisition Date. As of
    March 31, 2008, the allocation of the purchase price to
    goodwill has decreased by $51 million as compared to the
    preliminary allocation as of the Acquisition Date. This
    adjustment to the preliminary purchase price allocation was
    primarily related to updated valuations of identifiable
    intangible assets, property and inventories partially offset by
    additional acquisition-related liabilities. The final allocation
    of the purchase price may result in additional adjustments to
    the recorded amounts of assets and liabilities and may also
    result in adjustments to depreciation, amortization and acquired
    in-process research and development. The adjustments arising out
    of the finalization of the purchase price allocation will not
    impact cash flows. However, such adjustments could result in
    material increases or decreases to net income/(loss) available
    to common shareholders. Further revisions to the purchase price
    allocation will be made as additional information becomes
    available. The final allocation is expected to be completed as
    soon as practicable, but no later than 12 months after the
    Acquisition Date.
 
    Purchase accounting items of $691 million related to the
    amortization of inventory, identifiable intangible assets and
    property, plant and equipment are included in depreciation and
    amortization in the Statement of Condensed Consolidated Cash
    Flows for the three months ended March 31, 2008.
 
    The updated preliminary purchase price allocation of acquired
    identifiable intangible assets is as follows:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  | Weighted-Average 
 |  | 
|  |  |  |  |  | Amortization 
 |  | 
|  |  | Amount |  |  | Period (years) |  | 
|  |  | (Dollars in millions) |  |  |  |  | 
|  | 
| 
    Patents:
 |  |  |  |  |  |  |  |  | 
| 
    Women’s Health — Contraception
 |  | $ | 1,659 |  |  |  | 11 |  | 
| 
    Women’s Health — Fertility
 |  |  | 1,013 |  |  |  | 11 |  | 
| 
    Women’s Health — Other
 |  |  | 440 |  |  |  | 13 |  | 
| 
    Central Nervous System
 |  |  | 527 |  |  |  | 12 |  | 
| 
    Other Human Prescription Pharmaceuticals
 |  |  | 382 |  |  |  | 8 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total patents
 |  | $ | 4,021 |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Trademarks:
 |  |  |  |  |  |  |  |  | 
| 
    Animal Health
 |  | $ | 2,608 |  |  |  | 20 |  | 
| 
    Human Prescription Pharmaceuticals
 |  |  | 210 |  |  |  | 20 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total trademarks
 |  | $ | 2,818 |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total intangible assets acquired
 |  | $ | 6,839 |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  | 
 
    The weighted-average life of total acquired intangibles is
    approximately 15 years. The intangible assets have no
    significant residual value. There were no acquired intangible
    assets that were determined to have an indefinite life.
    
    7
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    |  |  | 
    | 3. | SPECIAL
    AND ACQUISITION-RELATED CHARGES | 
 
    During the three months ended March 31, 2008 and 2007,
    Schering-Plough incurred $23 million and $1 million,
    respectively, of integration-related costs for the OBS
    acquisition. The integration-related costs for the three months
    ended March 31, 2008 included $8 million of employee
    termination costs. See Note 4, “OBS Integration and
    Productivity Transformation Program,” for additional
    information. During the three months ended March 31, 2008,
    Schering-Plough made cash payments of $23 million for
    special and acquisition-related charges.
 
    During the three months ended March 31, 2007,
    Schering-Plough made cash payments of $379 million for the
    settlement of an investigation by the U.S. Attorney’s
    Office for the District of Massachusetts involving certain of
    Schering-Plough’s sales, marketing and clinical trial
    practices and programs (the Massachusetts Investigation) and
    made cash payments of $9 million related to the 2006
    manufacturing streamlining.
 
    |  |  | 
    | 4. | OBS
    INTEGRATION AND PRODUCTIVITY TRANSFORMATION PROGRAM | 
 
    As part of the preliminary purchase price allocation of the OBS
    acquisition as of the Acquisition Date, Schering-Plough recorded
    acquisition-related liabilities of $151 million related
    primarily to involuntary termination benefits and costs to exit
    certain activities of OBS. In addition, Schering-Plough recorded
    $23 million of employee termination costs in 2007
    subsequent to the Acquisition Date that were included in special
    and acquisition-related charges.
 
    In April 2008, Schering-Plough announced a major new program,
    the Productivity Transformation Program, designed to reduce and
    avoid costs and increase productivity. The targeted savings
    envisioned by this program include those resulting from the
    previously announced OBS integration synergies. The goal of this
    program is to create a leaner, stronger company to allow
    Schering-Plough to produce long-term high performance in the
    current pharmaceutical industry environment, especially in the
    United States. The details of this program have not been fully
    formulated as of April 2008. As part of this program,
    approximately 400 positions had been eliminated through
    March 31, 2008.
 
    The following table summarizes the charges, cash payments and
    liabilities related to the Productivity Transformation Program
    through March 31, 2008:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Employee 
 |  |  | Acquisition- 
 |  | 
|  |  | Termination 
 |  |  | Related 
 |  | 
|  |  | Costs(a) |  |  | Liabilities(c) |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Accrued liability at December 31, 2007
 |  | $ | 23 | (b) |  | $ | 151 |  | 
| 
    Charges
 |  |  | 8 |  |  |  | — |  | 
| 
    Purchase price allocation adjustments
 |  |  | — |  |  |  | 38 |  | 
| 
    Cash payments
 |  |  | (6 | ) |  |  | (22 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Accrued liability at March 31, 2008
 |  | $ | 25 |  |  | $ | 167 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    |  |  |  | 
    | (a) |  | Recorded to special and acquisition-related charges. | 
|  | 
    | (b) |  | Represents employee termination costs recorded under
    SFAS No. 112, “Employers’ Accounting for
    Postemployment Benefits,” in the fourth quarter of 2007. | 
|  | 
    | (c) |  | Recorded as part of purchase accounting. Included in
    acquisition-related liabilities are involuntary termination
    benefits and costs to exit certain activities of OBS. | 
 
 
    In May 2000, Schering-Plough and Merck & Co., Inc.
    (Merck) entered into two separate sets of agreements to jointly
    develop and market certain products in the U.S. including
    (1) two cholesterol-lowering
    
    8
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    drugs and (2) an allergy/asthma drug. In December 2001, the
    cholesterol agreements were expanded to include all countries of
    the world except Japan. In general, the companies agreed that
    the collaborative activities under these agreements would
    operate in a virtual joint venture to the maximum degree
    possible by relying on the respective infrastructures of the two
    companies. These agreements generally provide for equal sharing
    of development costs and for co-promotion of approved products
    by each company.
 
    The cholesterol agreements provide for Schering-Plough and Merck
    to jointly develop and commercialize ezetimibe in the
    cholesterol management field:
 
    i. as a once-daily monotherapy (marketed as ZETIA in the
    U.S. and Asia and EZETROL in Europe);
 
    ii. in co-administration with various approved statin
    drugs; and
 
    iii. as a fixed-combination tablet of ezetimibe and
    simvastatin (Zocor), Merck’s cholesterol-modifying
    medicine. This combination medication (ezetimibe/simvastatin) is
    marketed as VYTORIN in the U.S. and as INEGY in many
    international countries.
 
    ZETIA/EZETROL (ezetimibe) and VYTORIN/INEGY (the combination of
    ezetimibe/simvastatin) are approved for use in the U.S. and
    have been launched in many international markets.
 
    Schering-Plough utilizes the equity method of accounting in
    recording its share of activity from the Merck/Schering-Plough
    cholesterol joint venture. As such, Schering-Plough’s net
    sales do not include the sales of the joint venture. The
    cholesterol joint venture agreements provide for the sharing of
    operating income generated by the joint venture based upon
    percentages that vary by product, sales level and country. In
    the U.S. market, Schering-Plough receives a greater share
    of profits on the first $300 million of annual ZETIA sales.
    Above $300 million of annual ZETIA sales, Merck and
    Schering-Plough generally share profits equally.
    Schering-Plough’s allocation of the joint venture income is
    increased by milestones recognized. Further, either
    company’s share of the joint venture’s income from
    operations is subject to a reduction if that company fails to
    perform a specified minimum number of physician details in a
    particular country. The companies agree annually to the minimum
    number of physician details by country.
 
    The companies bear the costs of their own general sales forces
    and commercial overhead in marketing joint venture products
    around the world. In the U.S., Canada and Puerto Rico, the
    cholesterol agreements provide for a reimbursement to each
    company for physician details that are set on an annual basis,
    and in Italy, a contractual amount is included in the profit
    sharing calculation that is not reimbursed. In the U.S., Canada
    and Puerto Rico this amount is equal to each company’s
    physician details multiplied by a contractual fixed fee.
    Schering-Plough reports these amounts as part of equity income
    from the cholesterol joint venture. These amounts do not
    represent a reimbursement of specific, incremental and
    identifiable costs for Schering-Plough’s detailing of the
    cholesterol products in these markets. In addition, these
    amounts are not reflective of Schering-Plough’s sales
    effort related to the joint venture as Schering-Plough’s
    sales force and related costs associated with the joint venture
    are generally estimated to be higher.
 
    Costs of the joint venture that the companies contractually
    share are a portion of manufacturing costs, specifically
    identified promotion costs (including direct-to-consumer
    advertising and direct and identifiable out-of-pocket promotion)
    and other agreed upon costs for specific services such as market
    support, market research, market expansion, a specialty sales
    force and physician education programs.
 
    Certain specified research and development expenses are
    generally shared equally by Schering-Plough and Merck. Under
    certain conditions, as specified in the joint venture agreements
    with Merck, Schering-Plough could be entitled to receive
    reimbursements of its future research and development expenses
    and other payments of up to $105 million.
    
    9
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    The unaudited financial information below presents summarized
    combined financial information for the Merck/Schering-Plough
    cholesterol joint venture for the three months ended
    March 31, 2008 and 2007:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Net sales
 |  | $ | 1,233 |  |  | $ | 1,168 |  | 
| 
    Cost of sales
 |  |  | 52 |  |  |  | 50 |  | 
| 
    Income from operations
 |  |  | 854 |  |  |  | 795 |  | 
 
    Amounts related to physician details, among other expenses, that
    are invoiced by Schering-Plough and Merck in the U.S., Canada
    and Puerto Rico are deducted from income from operations of the
    joint venture.
 
    Schering-Plough’s share of the joint venture’s income
    from operations for the three months ended March 31, 2008
    and 2007 was $459 million and $433 million,
    respectively. In the U.S. market, Schering-Plough receives
    a greater share of income from operations on the first
    $300 million of annual ZETIA sales. As a result,
    Schering-Plough’s share of the joint venture’s income
    from operations is generally higher in the first quarter than in
    subsequent quarters.
 
    The following information provides a summary of the components
    of Schering-Plough’s equity income from the cholesterol
    joint venture for the three months ended March 31, 2008 and
    2007:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Schering-Plough’s share of income from operations
 |  | $ | 459 |  |  | $ | 433 |  | 
| 
    Contractual amounts for physician details
 |  |  | 62 |  |  |  | 62 |  | 
| 
    Elimination of intercompany profit and other, net
 |  |  | (4 | ) |  |  | (8 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total equity income from cholesterol joint venture
 |  | $ | 517 |  |  | $ | 487 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    Equity income from the joint venture excludes any profit arising
    from transactions between Schering-Plough and the joint venture
    until such time as there is an underlying profit realized by the
    joint venture in a transaction with a party other than
    Schering-Plough or Merck.
 
    Due to the virtual nature of the cholesterol joint venture,
    Schering-Plough incurs substantial costs, such as selling,
    general and administrative costs, that are not reflected in
    equity income and are borne by the overall cost structure of
    Schering-Plough. These costs are reported on their respective
    line items in the Statements of Condensed Consolidated
    Operations and are not separately identifiable. The cholesterol
    agreements do not provide for any jointly owned facilities and,
    as such, products resulting from the joint venture are
    manufactured in facilities owned by either Schering-Plough or
    Merck.
 
    The allergy/asthma agreements provide for the joint development
    and marketing by the companies of a once-daily,
    fixed-combination tablet containing CLARITIN and Singulair.
    Singulair is Merck’s once-daily leukotriene receptor
    antagonist for the treatment of asthma and seasonal allergic
    rhinitis. During 2007, a New Drug Application filing for this
    combination tablet was accepted by the U.S. Food and Drug
    Administration (FDA) for standard review. On April 25,
    2008, the Merck/Schering-Plough joint venture received a
    not-approvable letter from the FDA for the proposed fixed
    combination of loratadine/montelukast. The companies are
    evaluating the FDA’s response.
 
    During 2007, Schering-Plough announced that it had agreed with
    Merck to commence development of a single-tablet combination of
    ezetimibe and atorvastatin as a treatment for elevated
    cholesterol levels.
    
    10
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    See Note 17, “Legal, Environmental and Regulatory
    Matters,” for discussion of the ENHANCE matter.
 
    |  |  | 
    | 6. | SHARE-BASED
    COMPENSATION | 
 
    Schering-Plough adopted SFAS No. 123 (Revised 2004),
    “Share-Based Payment” (SFAS 123R), effective
    January 1, 2006. SFAS 123R requires companies to
    recognize compensation expense in an amount equal to the fair
    value of all share-based payments granted to employees.
    Schering-Plough elected the modified prospective transition
    method and therefore adjustments to prior periods were not
    required as a result of adopting SFAS 123R. Under this
    method, the provisions of SFAS 123R apply to all awards
    granted after the date of adoption and to any unrecognized
    expense of awards unvested at the date of adoption based on the
    grant date fair value.
 
    A summary of the options, deferred stock units and
    performance-based deferred stock units granted during the three
    months ended March 31, 2008 and 2007 is as follows:
 
    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  |  |  |  | Weighted- 
 |  |  |  |  |  | Weighted- 
 |  | 
|  |  |  |  |  | Average 
 |  |  |  |  |  | Average 
 |  | 
|  |  | Underlying 
 |  |  | Grant-Date 
 |  |  | Underlying 
 |  |  | Grant-Date 
 |  | 
| 
    (Number of Underlying Shares in Thousands)
 |  | Shares |  |  | Fair Value |  |  | Shares |  |  | Fair Value |  | 
|  | 
| 
    Stock options
 |  |  | 5,837 |  |  | $ | 4.48 |  |  |  | 182 |  |  | $ | 5.72 |  | 
| 
    Deferred stock units
 |  |  | 95 |  |  |  | 21.31 |  |  |  | 125 |  |  |  | 24.06 |  | 
| 
    Performance-based deferred stock units
 |  |  | 1,034 |  |  |  | 19.43 |  |  |  | 1,375 |  |  |  | 23.23 |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
    Total awards
 |  |  | 6,966 |  |  |  |  |  |  |  | 1,682 |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
 
    Options become exercisable in equal annual installments over a
    three-year period. The deferred stock units generally vest at
    the end of a three-year period from the date they were granted.
    The performance-based deferred stock units vest at the end of a
    three-year performance period if specific pre-established levels
    of performance, market conditions and service are met.
 
    The weighted-average assumptions used in the Black-Scholes
    option pricing model in the first quarter of 2008 and 2007 were
    as follows:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  | 
| 
    Dividend yield
 |  |  | 1.1 | % |  |  | 1.1 | % | 
| 
    Volatility
 |  |  | 24.5 | % |  |  | 22.6 | % | 
| 
    Risk-free interest rate
 |  |  | 2.5 | % |  |  | 4.6 | % | 
| 
    Expected term of options (in years)
 |  |  | 4.5 |  |  |  | 4.5 |  | 
 
    Total compensation expense related to stock options, deferred
    stock units and performance-based deferred stock units for the
    three months ended March 31, 2008 and 2007 was
    $60 million and $42 million, respectively.
 
    At March 31, 2008, the total remaining unrecognized
    compensation cost related to the performance-based deferred
    stock units granted in 2008 and 2007 amounted to
    $19 million and $30 million, respectively, which will
    be amortized over the weighted-average remaining requisite
    service period of 2.75 and 1.75 years, respectively. The
    remaining unrecognized compensation cost for the
    performance-based deferred stock units may vary each reporting
    period based on changes in the expected achievement of
    performance measures.
    
    11
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    Liability
    Plans
 
    Schering-Plough has two compensation plans that are classified
    as liability plans under SFAS 123R. Schering-Plough
    recognized $35 million of income and $7 million of
    expense for these plans during the first quarter of 2008 and
    2007, respectively.
 
    |  |  | 
    | 7. | OTHER
    EXPENSE/(INCOME), NET | 
 
    The components of other expense/(income), net are as follows:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Interest cost incurred
 |  | $ | 143 |  |  | $ | 42 |  | 
| 
    Less: amount capitalized on construction
 |  |  | 5 |  |  |  | 5 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Interest expense
 |  |  | 138 |  |  |  | 37 |  | 
| 
    Interest income
 |  |  | (22 | ) |  |  | (82 | ) | 
| 
    Foreign exchange gains, net
 |  |  | (4 | ) |  |  | — |  | 
| 
    Mark-to-market gain on fair value of foreign currency option
 |  |  | — |  |  |  | (3 | ) | 
| 
    Other, net
 |  |  | (17 | ) |  |  | — |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total other expense/(income), net
 |  | $ | 95 |  |  | $ | (48 | ) | 
|  |  |  |  |  |  |  |  |  | 
 
    During the first quarter of 2008, Schering-Plough recognized a
    gain of $17 million ($12 million after tax) on the
    sale of a manufacturing site.
 
    In March 2007, as part of an overall risk management strategy
    and in consideration of various preliminary financing scenarios
    associated with the planned acquisition of OBS, Schering-Plough
    purchased a euro-denominated currency option (derivative) for a
    premium of $130 million. This derivative did not qualify
    for hedge accounting in accordance with SFAS No. 133,
    “Accounting for Derivative Instruments and Hedging
    Activities,” as amended (SFAS 133). Accordingly, the
    change in fair value of this derivative was recognized in the
    Statement of Condensed Consolidated Operations. During the first
    quarter of 2007, Schering-Plough recognized a mark-to-market
    gain of $3 million on this foreign currency option. This
    derivative was short-term (trading) in nature and did not hedge
    a specific financing or investing transaction. Accordingly, the
    cash impacts of this derivative were classified as operating
    cash flows in the Statement of Condensed Consolidated Cash
    Flows. This derivative was terminated during the fourth quarter
    of 2007.
 
    During 2007, Schering-Plough participated in health care
    refinancing programs adopted by local government fiscal
    authorities in a major European market. During the three months
    ended March 31, 2007, Schering-Plough transferred
    $83 million of its trade accounts receivables owned by a
    foreign subsidiary to third-party financial institutions without
    recourse. The transfer of trade accounts receivable qualified as
    sales of accounts receivable under SFAS No. 140,
    “Accounting for Transfers and Servicing of Financial Assets
    and Extinguishments of Liabilities.” For the three months
    ended March 31, 2007, the transfer of these trade accounts
    receivable did not have a material impact on
    Schering-Plough’s Statement of Condensed Consolidated
    Operations. Cash flows from these transactions are included in
    the change in accounts receivable in operating activities.
 
 
    Schering-Plough expects to report a U.S. Net Operating Loss
    (NOL) carryforward of approximately $1.7 billion on its
    2007 tax return, which will be available to offset future
    U.S. taxable income through 2027.
    
    12
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    This U.S. NOL carryforward could be materially reduced
    after examination of Schering-Plough’s income tax returns
    by the Internal Revenue Service (IRS). Schering-Plough continues
    to maintain a valuation allowance against its U.S. deferred
    tax assets, as management cannot conclude that it is more likely
    than not the benefit of the U.S. net deferred tax assets
    can be realized.
 
    |  |  | 
    | 9. | RETIREMENT
    PLANS AND OTHER POST-RETIREMENT BENEFITS | 
 
    Schering-Plough has defined benefit pension plans covering
    eligible employees in the U.S. and certain foreign
    countries. In addition, Schering-Plough provides post-retirement
    medical and life insurance benefits primarily to its eligible
    U.S. retirees and their dependents through its
    post-retirement benefit plans.
 
    The components of net pension expense were as follows:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Service cost
 |  | $ | 53 |  |  | $ | 31 |  | 
| 
    Interest cost
 |  |  | 58 |  |  |  | 32 |  | 
| 
    Expected return on plan assets
 |  |  | (59 | ) |  |  | (31 | ) | 
| 
    Amortization, net
 |  |  | 7 |  |  |  | 11 |  | 
| 
    Settlement
 |  |  | — |  |  |  | 1 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Net pension expense
 |  | $ | 59 |  |  | $ | 44 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    The components of other post-retirement benefits expense were as
    follows:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Service cost
 |  | $ | 7 |  |  | $ | 5 |  | 
| 
    Interest cost
 |  |  | 10 |  |  |  | 7 |  | 
| 
    Expected return on plan assets
 |  |  | (3 | ) |  |  | (3 | ) | 
| 
    Amortization, net
 |  |  | 1 |  |  |  | 1 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Net other post-retirement benefits expense
 |  | $ | 15 |  |  | $ | 10 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    For the three months ended March 31, 2008, Schering-Plough
    contributed $49 million to its retirement plans.
    Schering-Plough expects to contribute approximately
    $170 million to its retirement plans during the remainder
    of 2008.
    
    13
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    |  |  | 
    | 10. | EARNINGS
    PER COMMON SHARE | 
 
    The following table reconciles the components of basic and
    diluted earnings per common share (EPS) computations:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars and shares 
 |  | 
|  |  | in millions) |  | 
|  | 
| 
    EPS numerator:
 |  |  |  |  |  |  |  |  | 
| 
    Net income available to common shareholders (Basic EPS numerator)
 |  | $ | 253 |  |  | $ | 543 |  | 
| 
    Add: Dilutive 2004 preferred stock dividends
 |  |  | — |  |  |  | 22 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Diluted EPS numerator
 |  | $ | 253 |  |  | $ | 565 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    EPS denominator:
 |  |  |  |  |  |  |  |  | 
| 
    Weighted-average shares outstanding for basic EPS
 |  |  | 1,621 |  |  |  | 1,488 |  | 
| 
    Dilutive effect of options and deferred stock units
 |  |  | 16 |  |  |  | 18 |  | 
| 
    Dilutive effect of 2004 preferred shares
 |  |  | — |  |  |  | 65 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Average shares outstanding for diluted EPS
 |  |  | 1,637 |  |  |  | 1,571 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    During the third quarter of 2007, Schering-Plough’s 2004
    mandatory convertible preferred stock converted into
    65 million common shares. These common shares are included
    in the weighted-average shares outstanding for basic EPS for the
    three months ended March 31, 2008.
 
    For the three months ended March 31, 2008 and 2007,
    40 million and 30 million, respectively, of equivalent
    common shares issuable under Schering-Plough’s stock
    incentive plans were excluded from the computation of diluted
    EPS because their effect would have been antidilutive.
 
    For the three months ended March 31, 2008, 91 million
    common shares obtainable upon conversion of the 2007 mandatory
    convertible preferred stock were excluded from the computation
    of diluted EPS because their effect would have been
    antidilutive. For the three months ended March 31, 2007,
    approximately 65 million common shares obtainable upon
    conversion of Schering-Plough’s 2004 mandatory convertible
    preferred stock were dilutive to EPS and were therefore included
    in the computation of diluted EPS.
 
 
    Comprehensive income is comprised of the following:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Net income
 |  | $ | 291 |  |  | $ | 565 |  | 
| 
    Foreign currency translation adjustment
 |  |  | 450 |  |  |  | 18 |  | 
| 
    Unrealized loss on investments available for sale, net of tax
 |  |  | (9 | ) |  |  | (1 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total comprehensive income
 |  | $ | 732 |  |  | $ | 582 |  | 
|  |  |  |  |  |  |  |  |  | 
    
    14
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
 
    Inventories consisted of the following:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | March 31, 
 |  |  | December 31, 
 |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Finished products
 |  | $ | 1,565 |  |  | $ | 1,823 |  | 
| 
    Goods in process
 |  |  | 1,745 |  |  |  | 1,729 |  | 
| 
    Raw materials and supplies
 |  |  | 600 |  |  |  | 617 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total inventories and inventory classified in other non-current
    assets
 |  | $ | 3,910 |  |  | $ | 4,169 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    Included in other assets at March 31, 2008 and
    December 31, 2007 were $169 million and
    $96 million, respectively, of inventory not expected to be
    sold within one year.
 
    |  |  | 
    | 13. | GOODWILL
    AND OTHER INTANGIBLE ASSETS | 
 
    Goodwill at March 31, 2008 and December 31, 2007 was
    $3.1 billion and $2.9 billion, respectively. The
    increase at March 31, 2008 was due to foreign currency
    translation, partially offset by a decrease of $51 million
    due to adjustments to the preliminary purchase price allocation
    for the OBS acquisition. See Note 2,
    “Acquisition.”
 
    The components of other intangible assets, net are as follows:
 
    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  |  | March 31, 2008 |  |  | December 31, 2007 |  | 
|  |  | Gross 
 |  |  |  |  |  |  |  |  | Gross 
 |  |  |  |  |  |  |  | 
|  |  | Carrying 
 |  |  | Accumulated 
 |  |  |  |  |  | Carrying 
 |  |  | Accumulated 
 |  |  |  |  | 
|  |  | Amount |  |  | Amortization |  |  | Net |  |  | Amount |  |  | Amortization |  |  | Net |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Patents
 |  | $ | 4,289 |  |  | $ | 161 |  |  | $ | 4,128 |  |  | $ | 4,050 |  |  | $ | 55 |  |  | $ | 3,995 |  | 
| 
    Trademarks
 |  |  | 3,011 |  |  |  | 84 |  |  |  | 2,927 |  |  |  | 2,851 |  |  |  | 67 |  |  |  | 2,784 |  | 
| 
    Licenses and other
 |  |  | 774 |  |  |  | 558 |  |  |  | 216 |  |  |  | 740 |  |  |  | 515 |  |  |  | 225 |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
    Total other intangible assets
 |  | $ | 8,074 |  |  | $ | 803 |  |  | $ | 7,271 |  |  | $ | 7,641 |  |  | $ | 637 |  |  | $ | 7,004 |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
 
    These intangible assets are amortized on the straight-line
    method over their respective useful lives. The residual value of
    intangible assets is estimated to be zero. Amortization expense
    for the three months ended March 31, 2008 and 2007 was
    $143 million and $10 million, respectively. Annual
    amortization expense related to these intangible assets for the
    years 2008 to 2013 is expected to be approximately
    $570 million.
    
    15
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
 
    Schering-Plough’s outstanding borrowings at March 31,
    2008 and December 31, 2007 were as follows:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | March 31, 
 |  |  | December 31, 
 |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Short-term
 |  |  |  |  |  |  |  |  | 
| 
    Commercial paper
 |  | $ | 148 |  |  | $ | 149 |  | 
| 
    Other short-term borrowings and current portion of long-term debt
 |  |  | 338 |  |  |  | 310 |  | 
| 
    Current portion of capital leases
 |  |  | 1 |  |  |  | 2 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total short-term borrowings
 |  | $ | 487 |  |  | $ | 461 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Long-term
 |  |  |  |  |  |  |  |  | 
| 
    5.00% senior unsecured euro-denominated notes due 2010
 |  | $ | 790 |  |  | $ | 736 |  | 
| 
    Floating rate euro-denominated term loan due 2012
 |  |  | 1,739 |  |  |  | 1,619 |  | 
| 
    5.30% senior unsecured notes due 2013
 |  |  | 1,247 |  |  |  | 1,247 |  | 
| 
    5.375% senior unsecured euro-denominated notes due 2014
 |  |  | 2,367 |  |  |  | 2,205 |  | 
| 
    6.00% senior unsecured notes due 2017
 |  |  | 995 |  |  |  | 995 |  | 
| 
    6.50% senior unsecured notes due 2033
 |  |  | 1,143 |  |  |  | 1,143 |  | 
| 
    6.55% senior unsecured notes due 2037
 |  |  | 994 |  |  |  | 994 |  | 
| 
    Capital leases
 |  |  | 21 |  |  |  | 24 |  | 
| 
    Other long-term borrowings
 |  |  | 53 |  |  |  | 56 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Total long-term borrowings
 |  | $ | 9,349 |  |  | $ | 9,019 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    The increase in outstanding borrowings at March 31, 2008
    was due to foreign currency translation on the euro-denominated
    debt.
 
    |  |  | 
    | 15. | FAIR
    VALUE MEASUREMENTS | 
 
    Schering-Plough’s Condensed Consolidated Balance Sheet at
    March 31, 2008 includes the following assets and
    liabilities that are measured at fair value on a recurring basis:
 
    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  | Quoted Prices 
 |  |  | Significant 
 |  |  | Significant 
 |  | 
|  |  | Fair Value at 
 |  |  | in Active Markets 
 |  |  | Other Observable 
 |  |  | Unobservable 
 |  | 
|  |  | March 31, 
 |  |  | for Identical Items 
 |  |  | Inputs 
 |  |  | Inputs 
 |  | 
|  |  | 2008 |  |  | (Level 1) |  |  | (Level 2) |  |  | (Level 3) |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Assets
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
    Securities held for employee compensation
 |  | $ | 140 |  |  | $ | 140 |  |  | $ | — |  |  | $ | — |  | 
| 
    Other
 |  |  | 20 |  |  |  | 7 |  |  |  | 13 |  |  |  | — |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
    Total assets
 |  | $ | 160 |  |  | $ | 147 |  |  | $ | 13 |  |  | $ | — |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
    Liabilities
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
    Employee compensation-related obligations
 |  | $ | 178 |  |  | $ | 178 |  |  | $ | — |  |  | $ | — |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
    Total liabilities
 |  | $ | 178 |  |  | $ | 178 |  |  | $ | — |  |  | $ | — |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
    
    16
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    The majority of Schering-Plough’s assets and liabilities
    measured at fair value on a recurring basis are measured using
    unadjusted quoted prices in active markets for identical items
    (level 1) as inputs, multiplied by the number of units
    held at the balance sheet date. As of March 31, 2008,
    assets with fair values measured using significant other
    observable inputs (level 2) include measurements using
    quoted prices for identical items in markets that are not active
    and measurements using inputs that are derived principally from
    or corroborated by observable market data.
 
 
     Schering-Plough has three reportable segments: Human
    Prescription Pharmaceuticals, Animal Health and Consumer Health
    Care. The segment sales and profit data that follow are
    consistent with Schering-Plough’s current management
    reporting structure. The Human Prescription Pharmaceuticals
    segment discovers, develops, manufactures and markets human
    pharmaceutical products. The Animal Health segment discovers,
    develops, manufactures and markets animal health products. The
    Consumer Health Care segment develops, manufactures and markets
    over-the-counter, foot care and sun care products, primarily in
    the U.S.
 
    Net
    sales by segment:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Human Prescription Pharmaceuticals
 |  | $ | 3,557 |  |  | $ | 2,398 |  | 
| 
    Animal Health
 |  |  | 723 |  |  |  | 232 |  | 
| 
    Consumer Health Care
 |  |  | 377 |  |  |  | 345 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Consolidated net sales
 |  | $ | 4,657 |  |  | $ | 2,975 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    Net sales for the three months ended March 31, 2008
    includes the net sales of OBS products acquired on
    November 19, 2007.
 
    Profit
    by segment:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008(1) |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Human Prescription Pharmaceuticals
 |  | $ | 515 |  |  | $ | 551 |  | 
| 
    Animal Health
 |  |  | (85 | ) |  |  | 18 |  | 
| 
    Consumer Health Care
 |  |  | 106 |  |  |  | 113 |  | 
| 
    Corporate and other
 |  |  | (173 | ) |  |  | (30 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Income before income taxes
 |  | $ | 363 |  |  | $ | 652 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    |  |  |  | 
    | (1) |  | In the first quarter of 2008, the Human Prescription
    Pharmaceuticals segment’s profit and the Animal Health
    segment’s loss includes expense of $432 million and
    $259 million, respectively, related to purchase accounting
    items from the OBS transaction. | 
 
 
    Schering-Plough’s net sales do not include sales of VYTORIN
    and ZETIA, which are managed in the joint venture with Merck, as
    Schering-Plough accounts for this joint venture under the equity
    method of accounting (see Note 5, “Equity
    Income,” for additional information). The Human
    Prescription Pharmaceuticals segment includes equity income from
    the Merck/Schering-Plough joint venture.
    
    17
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    “Corporate and other” includes interest income and
    expense, foreign exchange gains and losses, currency option
    gains, headquarters expenses, special and acquisition-related
    charges and other miscellaneous items. The accounting policies
    used for segment reporting are the same as those described in
    Note 1, “Summary of Significant Accounting
    Policies,” in Schering-Plough’s 2007
    10-K/A.
 
    Sales of products comprising 10 percent or more of
    Schering-Plough’s U.S. or international sales for the
    three months ended March 31, 2008, were as follows:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  | Percentage of 
 |  | 
|  |  | Amount |  |  | Applicable Sales |  | 
|  |  | (Dollars in 
 |  |  |  |  | 
|  |  | millions) |  |  |  |  | 
|  | 
| 
    U.S.
 |  |  |  |  |  |  |  |  | 
| 
    NASONEX
 |  | $ | 172 |  |  |  | 12 | % | 
| 
    AVELOX
 |  |  | 142 |  |  |  | 10 | % | 
| 
    International
 |  |  |  |  |  |  |  |  | 
| 
    REMICADE
 |  | $ | 507 |  |  |  | 16 | % | 
 
    For the three months ended March 31, 2008, net sales
    outside the U.S. totaled $3.2 billion, or
    69 percent, of consolidated net sales.
 
    Schering-Plough does not disaggregate assets on a segment basis
    for internal management reporting and therefore such information
    is not presented.
 
    |  |  | 
    | 17. | LEGAL,
    ENVIRONMENTAL AND REGULATORY MATTERS | 
 
    Background
 
    Schering-Plough is involved in various claims, investigations
    and legal proceedings.
 
    Schering-Plough records a liability for contingencies when it is
    probable that a liability has been incurred and the amount can
    be reasonably estimated. Schering-Plough adjusts its liabilities
    for contingencies to reflect the current best estimate of
    probable loss or minimum liability, as the case may be. Where no
    best estimate is determinable, Schering-Plough records the
    minimum amount within the most probable range of its liability.
    Expected insurance recoveries have not been considered in
    determining the amounts of recorded liabilities for
    environmental related matters.
 
    If Schering-Plough believes that a loss contingency is
    reasonably possible, rather than probable, or the amount of loss
    cannot be estimated, no liability is recorded. However, where a
    liability is reasonably possible, disclosure of the loss
    contingency is made.
 
    Schering-Plough reviews the status of all claims, investigations
    and legal proceedings on an ongoing basis, including related
    insurance coverages. From time to time, Schering-Plough may
    settle or otherwise resolve these matters on terms and
    conditions management believes are in the best interests of
    Schering-Plough. Resolution of any or all claims, investigations
    and legal proceedings, individually or in the aggregate, could
    have a material adverse effect on Schering-Plough’s
    consolidated results of operations, cash flows or financial
    condition.
 
    Except for the matters discussed in the remainder of this Note,
    the recorded liabilities for contingencies at March 31,
    2008, and the related expenses incurred during the three months
    ended March 31, 2008, were not material. In the opinion of
    management, based on the advice of legal counsel, the ultimate
    outcome of these matters, except matters discussed in the
    remainder of this Note, will not have a material impact on
    Schering-Plough’s consolidated results of operations, cash
    flows or financial condition.
    
    18
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    ENHANCE
    Matter
 
    In early 2008, the Merck / Schering-Plough cholesterol
    joint venture announced the results of the ENHANCE (Effect of
    Combination Ezetimibe and High-Dose Simvastatin vs. Simvastatin
    Alone on the Atherosclerotic Process in Patients with
    Heterozygous Familial Hypercholesterolemia) clinical trial.
    Schering-Plough encountered a challenge affecting sales of ZETIA
    and VYTORIN when the results of the ENHANCE trial, as well as
    the length of time that expired between the last patient having
    an ultrasound image taken for the trial through the final
    analysis and the unblinding of data, became the subjects of
    intense scrutiny and varying interpretations in the media.
 
    Schering-Plough, the joint venture and/or its joint venture
    partner, Merck, have received a number of governmental inquiries
    and have been the subject of a number of investigations with
    respect to the timing and disclosures relating to the ENHANCE
    clinical trial, the trial results, and in some cases sales of
    stock by the companies’ officers prior to release of the
    results of the ENHANCE clinical trial. Since mid-January 2008,
    Schering-Plough has become aware of or been served with
    litigation relating to such matters.
 
    Schering-Plough is cooperating fully with the various
    investigations and responding to the requests for information,
    and Schering-Plough intends to vigorously defend the lawsuits
    that have been filed relating to these matters.
 
    Earlier this year, after the initial release of ENHANCE data,
    the FDA stated that it would review the results of the trial,
    which may take approximately six months.
 
    Please refer to “Legal Proceedings” in Item 3 in
    Schering-Plough’s 2007
    10-K/A and
    Part II, Item 1, “Legal Proceedings,” in
    this 10-Q
    for additional information.
 
    AWP
    Litigation and Investigations
 
    Schering-Plough continues to respond to existing and new
    litigation by certain states and private payors and
    investigations by the Department of Health and Human Services,
    the Department of Justice and several states into industry and
    Schering-Plough practices regarding average wholesale price
    (AWP). Schering-Plough is cooperating with these investigations.
 
    These litigations and investigations relate to whether the AWP
    used by pharmaceutical companies for certain drugs improperly
    exceeds the average prices paid by providers and, as a
    consequence, results in unlawful inflation of certain
    reimbursements for drugs by state programs and private payors
    that are based on AWP. The complaints allege violations of
    federal and state law, including fraud, Medicaid fraud and
    consumer protection violations, among other claims. In the
    majority of cases, the plaintiffs are seeking class
    certifications. In some cases, classes have been certified. The
    outcome of these litigations and investigations could include
    substantial damages, the imposition of substantial fines,
    penalties and injunctive or administrative remedies.
 
    Securities
    and Class Action Litigation
 
    Federal
    Securities Litigation
 
    Following Schering-Plough’s announcement that the FDA had
    been conducting inspections of Schering-Plough’s
    manufacturing facilities in New Jersey and Puerto Rico and had
    issued reports citing deficiencies concerning compliance with
    current Good Manufacturing Practices, several lawsuits were
    filed against Schering-Plough and certain named officers. These
    lawsuits allege that the defendants violated the federal
    securities law by allegedly failing to disclose material
    information and making material misstatements. Specifically,
    they allege that Schering-Plough failed to disclose an alleged
    serious risk that a new drug application for CLARINEX would be
    delayed as a result of these manufacturing issues, and they
    allege that Schering-Plough failed to disclose the alleged depth
    and severity of its manufacturing issues. These complaints
    
    19
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    were consolidated into one action in the U.S. District
    Court for the District of New Jersey, and a consolidated amended
    complaint was filed on October 11, 2001, purporting to
    represent a class of shareholders who purchased shares of
    Schering-Plough stock from May 9, 2000 through
    February 15, 2001. The complaint seeks compensatory damages
    on behalf of the class. The Court certified the shareholder
    class on October 10, 2003. Notice of pendency of the class
    action was sent to members of that class in July 2007. Discovery
    has been completed, and motions for summary judgment have been
    briefed and are pending.
 
    ERISA
    Litigation
 
    On March 31, 2003, Schering-Plough was served with a
    putative class action complaint filed in the U.S. District
    Court in New Jersey alleging that Schering-Plough, retired
    Chairman, CEO and President Richard Jay Kogan,
    Schering-Plough’s Employee Savings Plan (Plan)
    administrator, several current and former directors, and certain
    corporate officers (Messrs. LaRosa and Moore) breached
    their fiduciary obligations to certain participants in the Plan.
    The complaint seeks damages in the amount of losses allegedly
    suffered by the Plan. The complaint was dismissed on
    June 29, 2004. The plaintiffs appealed. On August 19,
    2005 the U.S. Court of Appeals for the Third Circuit
    reversed the dismissal by the District Court and the matter has
    been remanded back to the District Court for further proceedings.
 
    K-DUR
    Antitrust Litigation
 
    Schering-Plough had settled patent litigation with Upsher-Smith,
    Inc. (Upsher-Smith) and ESI Lederle, Inc. (Lederle) relating to
    generic versions of K-DUR, Schering-Plough’s long-acting
    potassium chloride product supplement used by cardiac patients,
    for which Lederle and Upsher Smith had filed Abbreviated New
    Drug Applications. Following the commencement of an FTC
    administrative proceeding alleging anti-competitive effects from
    those settlements (which has been resolved in
    Schering-Plough’s favor), alleged class action suits were
    filed in federal and state courts on behalf of direct and
    indirect purchasers of K-DUR against Schering-Plough,
    Upsher-Smith and Lederle. These suits claim violations of
    federal and state antitrust laws, as well as other state
    statutory and common law causes of action. These suits seek
    unspecified damages. Discovery is ongoing.
 
    Third-Party
    Payor Actions
 
    Several purported class action litigations have been filed
    following the announcement of the settlement of the
    Massachusetts Investigation. Plaintiffs in these actions seek
    damages on behalf of third-party payors resulting from the
    allegations of off-label promotion and improper payments to
    physicians that were at issue in the Massachusetts Investigation.
 
    Tax
    Matters
 
    In October 2001, IRS auditors asserted that two interest rate
    swaps that Schering-Plough entered into with an unrelated party
    should be recharacterized as loans from affiliated companies,
    resulting in additional tax liability for the 1991 and 1992 tax
    years. In September 2004, Schering-Plough made payments to the
    IRS in the amount of $194 million for income tax and
    $279 million for interest. Schering-Plough filed refund
    claims for the tax and interest with the IRS in December 2004.
    Following the IRS’s denial of Schering-Plough’s claims
    for a refund, Schering-Plough filed suit in May 2005 in the
    U.S. District Court for the District of New Jersey for
    refund of the full amount of the tax and interest. This refund
    litigation has been tried in Newark District Court and a
    decision has not yet been rendered. Schering-Plough’s tax
    reserves were adequate to cover the above-mentioned payments.
    
    20
 
 
    SCHERING-PLOUGH
    CORPORATION AND SUBSIDIARIES
    
 
    NOTES TO
    CONDENSED CONSOLIDATED FINANCIAL
    STATEMENTS — (Continued)
 
    Pending
    Administrative Obligations
 
    In connection with the settlement of an investigation with the
    U.S. Department of Justice and the
    U.S. Attorney’s Office for the Eastern District of
    Pennsylvania, Schering-Plough entered into a five-year corporate
    integrity agreement (CIA). The CIA was amended in August of 2006
    in connection with the settlement of the Massachusetts
    Investigation, commencing a new five-year term. Failure to
    comply with the obligations under the CIA could result in
    financial penalties.
 
    Other
    Matters
 
    Product
    Liability
 
    Beginning in May of 2007, a number of complaints have been filed
    in various jurisdictions asserting claims against Organon USA,
    Inc., Organon Pharmaceuticals USA, Inc.,
    and/or
    Organon International (“Organon”) arising from
    Organon’s marketing and sale of NUVARING, a combined
    hormonal contraceptive vaginal ring. The plaintiffs contend that
    Organon failed to adequately warn of the alleged increased risk
    of venous thromboembolism (“VTE”) posed by NUVARING,
    and/or
    downplayed the risk of VTE. The plaintiffs seek damages for
    injuries allegedly sustained from their product use, including
    some alleged deaths, heart attacks and strokes. The majority of
    the cases are currently pending in the United States District
    Court for the District of New Jersey. Other cases are pending in
    Wisconsin, Missouri, New York and Georgia.
 
    French
    Matter
 
    Based on a complaint to the French competition authority from a
    competitor in France and pursuant to a court order, the French
    competition authority has obtained documents from a French
    subsidiary of Schering-Plough relating to SUBUTEX, one of the
    products that the subsidiary markets and sells. Any resolution
    of this matter adverse to the French subsidiary could result in
    the imposition of civil fines and injunctive or administrative
    remedies. On July 17, 2007, the Juge des Libertés et
    de la Détention ordered the annulment of the search and
    seizure on procedural grounds. On July 19, 2007, the French
    authority appealed the order to the French Supreme Court.
 
    In April 2007, the competitor also requested interim relief, a
    portion of which was granted by the French competition authority
    in December 2007. The interim relief required
    Schering-Plough’s French subsidiary to publish in two
    specialized newspapers information including that the generic
    has the same quantitative and qualitative composition and the
    same pharmaceutical form as, and is substitutable for, SUBUTEX.
    In February 2008, the Paris Court of Appeal confirmed the
    decision of the French competition authority.
 
    Environmental
 
    Schering-Plough has responsibilities for environmental cleanup
    under various state, local and federal laws, including the
    Comprehensive Environmental Response, Compensation and Liability
    Act, commonly known as Superfund. At several Superfund sites (or
    equivalent sites under state law), Schering-Plough is alleged to
    be a potentially responsible party (PRP). Schering-Plough
    believes that it is remote at this time that there is any
    material liability in relation to such sites. Schering-Plough
    estimates its obligations for cleanup costs for Superfund sites
    based on information obtained from the federal Environmental
    Protection Agency (EPA), an equivalent state agency
    and/or
    studies prepared by independent engineers, and on the probable
    costs to be paid by other PRPs. Schering-Plough records a
    liability for environmental assessments
    and/or
    cleanup when it is probable that a loss has been incurred and
    the amount can be reasonably estimated.
    
    21
 
 
    REPORT OF
    INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
    To the Board of Directors and Shareholders of Schering-Plough
    Corporation
 
    We have reviewed the accompanying condensed consolidated balance
    sheet of Schering-Plough Corporation and subsidiaries (the
    “Company”) as of March 31, 2008, and the related
    statements of condensed consolidated operations and cash flows
    for the three-month periods ended March 31, 2008 and 2007.
    These interim financial statements are the responsibility of the
    Company’s management.
 
    We conducted our reviews in accordance with the standards of the
    Public Company Accounting Oversight Board (United States). A
    review of interim financial information consists principally of
    applying analytical procedures and making inquiries of persons
    responsible for financial and accounting matters. It is
    substantially less in scope than an audit conducted in
    accordance with the standards of the Public Company Accounting
    Oversight Board (United States), the objective of which is the
    expression of an opinion regarding the financial statements
    taken as a whole. Accordingly, we do not express such an opinion.
 
    Based on our reviews, we are not aware of any material
    modifications that should be made to such condensed consolidated
    interim financial statements for them to be in conformity with
    accounting principles generally accepted in the United States of
    America.
 
    We have previously audited, in accordance with the standards of
    the Public Company Accounting Oversight Board (United States),
    the consolidated balance sheet of the Company as of
    December 31, 2007, and the related statements of
    consolidated operations, shareholders’ equity, and cash
    flows for the year then ended (not presented herein); and in our
    report dated February 29, 2008, we expressed an unqualified
    opinion on those consolidated financial statements and included
    an explanatory paragraph regarding the Company’s adoption
    of Statement of Financial Accounting Standards
    (“SFAS”) No. 123 (Revised 2004), Share-Based
    Payment, SFAS No. 158, Employers’
    Accounting for Defined Benefit Pension and Other Postretirement
    Plans and Financial Accounting Standards Board
    Interpretation No. 48, Accounting for Uncertainty in
    Income Taxes. In our opinion, the information set forth in
    the accompanying condensed consolidated balance sheet as of
    December 31, 2007 is fairly stated, in all material
    respects, in relation to the consolidated balance sheet from
    which it has been derived.
 
    /s/  Deloitte &
    Touche LLP
 
 
    Parsippany, New Jersey
    May 6, 2008
    
    22
 
 
    |  |  | 
    | Item 2. | Management’s
    Discussion and Analysis of Financial Condition and Results of
    Operations | 
 
    EXECUTIVE
    OVERVIEW
 
    Overview
    of Schering-Plough
 
    Schering-Plough is an innovation-driven science-centered global
    health care company. Schering-Plough discovers, develops and
    manufactures pharmaceuticals for three customer
    markets — human prescription, animal health and
    consumer. While most of the research and development activity is
    directed toward human prescription products, there are important
    applications of this central research and development platform
    into the animal health products and the consumer health care
    products. Schering-Plough also accesses external innovation via
    partnering, in-licensing and acquisition for all three customer
    markets.
 
    Strategy —
    Focused on Science
 
    In 2003, soon after Fred Hassan was elected as Chairman of the
    Board and Chief Executive Officer of Schering-Plough
    Corporation, he initiated a six-to-eight year strategic plan,
    called the Action Agenda. A key component of the Action Agenda
    is applying science to meet unmet medical needs. A core strategy
    of Schering-Plough is to invest substantial funds in scientific
    research with the goal of creating therapies and treatments that
    address important unmet medical needs and also have commercial
    value. Consistent with this core strategy, Schering-Plough is
    increasing its investment in research and development.
    Schering-Plough has been successful in advancing the pipeline
    and has several late-stage projects that will require sizable
    resources to complete. As Schering-Plough continues to develop
    the later-phase pipeline compounds (e.g., sugammadex, thrombin
    receptor antagonist, golimumab, vicriviroc, boceprevir and
    asenapine), it anticipates higher spending on clinical trial
    activities. Schering-Plough’s progressing early pipeline
    includes drug candidates across a wide range of therapeutic
    areas.
 
    Another key component of the Action Agenda is the focus on
    building long-term value for shareholders and for the patients
    who rely upon Schering-Plough’s drugs. This longer-term
    focus includes concurrent emphasis on growing sales, disciplined
    cost controls and investing in research and development for the
    future.
 
    Early on, Hassan and the new management team that he recruited
    applied the Action Agenda to stabilizing, repairing and turning
    around Schering-Plough after Schering-Plough encountered
    challenges earlier this decade under a prior management team.
 
    Currently, Schering-Plough continues work in the fourth of five
    phases of the Action Agenda. During the fourth, or Build the
    Base phase, Schering-Plough continues to focus on its strategy
    of value creation across a broad front. Over the past four
    years, sales of Schering-Plough pharmaceutical products across
    an array of therapeutic areas showed strong growth compared to
    prior periods and other pharmaceutical companies.
    Schering-Plough’s pharmaceutical sales and marketing
    activities expanded geographically, including into Brazil, China
    and Russia. This geographic diversity adds to growth and makes
    performance less sensitive to any one geographic area. The
    strategic Organon BioSciences N.V. (OBS) acquisition was closed
    in November 2007 and significant integration activities
    continue. The OBS acquisition added further diversification of
    marketed products, including two new therapeutic areas
    (Women’s Health and Central Nervous System); key pipeline
    projects; significant strength in the Animal Health products and
    pipeline with OBS’ Intervet organization; and significant
    talent, including in key research and development functions.
 
    As part of the Action Agenda, Schering-Plough continues to work
    to enhance infrastructure, upgrade processes and systems and
    strengthen talent. While these efforts are being implemented on
    a companywide basis, Schering-Plough is focusing especially on
    research and development to support Schering-Plough’s
    science-based business.
 
    The pharmaceutical industry is under increasing political and
    regulatory pressure, particularly in the U.S. And
    Schering-Plough in early 2008 has encountered a specific
    challenge, as explained in more detail in “ENHANCE
    Matter” in Part II, Item 1, “Legal
    Proceedings,” when results of a Merck/Schering-Plough
    cholesterol joint venture clinical trial, called ENHANCE, and
    joint venture products ZETIA and VYTORIN, became the subject of
    much media scrutiny and multiple investigations.
    
    23
 
    The strength Schering-Plough built during the earlier phases of
    the Action Agenda, including the diversified group of products
    and geographic areas, as well as its highly experienced
    executive team, will be helpful in weathering current and future
    challenges, including those relating to the
    Merck/Schering-Plough cholesterol joint venture ENHANCE clinical
    trial.
 
    Regarding the ENHANCE challenge, Schering-Plough’s strategy
    is centered on emphasizing the science around high LDL
    cholesterol (low-density lipoprotein, often known as “bad
    cholesterol”), which medical experts and health advisory
    groups have long recognized as a significant cardiovascular risk
    factor and recommended increasingly aggressive treatment of high
    cholesterol for certain patients. Lowering LDL cholesterol,
    along with a healthy diet and lifestyle changes, remains the
    cornerstone of lipid treatment for patients at risk for heart
    disease. Clinical studies have demonstrated that VYTORIN lowers
    patients’ LDL cholesterol more than rosuvastatin,
    atorvastatin and simvastatin at the doses studied and was able
    to get more patients to the LDL cholesterol goals identified by
    the National Cholesterol Education Program, Adult Treatment
    Panel III (ATP III) guidelines. The ENHANCE study also
    demonstrated superior LDL cholesterol lowering with VYTORIN
    compared to simvastatin. See “Outlook” for the current
    perspective on the effects of this challenge on
    Schering-Plough’s business.
 
    In April 2008, Schering-Plough announced a major new program,
    the Productivity Transformation Program. The goal of this
    program is to create a leaner, stronger company to allow
    Schering-Plough to produce long-term high performance in the
    current pharmaceutical industry environment. This program, which
    is still being developed, targets savings of $1.5 billion
    on an annualized basis by 2012 and is designed to reduce and
    avoid costs and to increase productivity. Of the total targeted
    savings, approximately $1.25 billion are anticipated to be
    accomplished by the end of 2010 with the balance achieved by
    2012. The targeted savings envisioned by this program include
    those resulting from the previously announced OBS integration
    synergies. Beyond this program, Schering-Plough anticipates
    investing in new high priority clinical trials, the pursuit of
    strategic opportunities, including product launches and
    anticipates natural cost growth.
 
    Results
    and Highlights for the Three Months Ended March 31,
    2008
 
    |  |  |  | 
    |  | • | Schering-Plough’s net sales for the three months ended
    March 31, 2008 were $4.7 billion, an increase of
    $1.7 billion, or 56 percent, as compared to the three
    months ended March 31, 2007. Net sales for the three months
    ended March 31, 2008 included $1.3 billion of sales of
    products acquired as part of the OBS acquisition. | 
|  | 
    |  | • | For the three months ended March 31, 2008, net sales
    outside the U.S. totaled $3.2 billion, or
    69 percent, of consolidated net sales. | 
|  | 
    |  | • | Net income available to common shareholders for the three months
    ended March 31, 2008 was $253 million, as compared to
    $543 million in the three months ended March 31, 2007.
    Included in net income available to common shareholders for the
    three months ended March 31, 2008 is $621 million of
    expense related to purchase accounting for the OBS acquisition
    and integration-related activities. | 
|  | 
    |  | • | Increased sales of pharmaceutical products such as REMICADE,
    TEMODAR and AVELOX, as well as increased sales in the Animal
    Health and Consumer Health Care segments contributed favorably
    to Schering-Plough’s overall operating results and cash
    flow. | 
|  | 
    |  | • | Global sales of Schering-Plough’s cholesterol franchise
    products, VYTORIN and ZETIA, managed by the cholesterol joint
    venture with Merck & Company, Inc. (Merck) increased
    6 percent during the first three months of 2008 as compared
    to the first three months of 2007. Sales of VYTORIN and ZETIA
    decreased 5 percent in the U.S. during the first three
    months of 2008 versus the first three months of 2007. | 
 
    Strategic
    Alliances
 
    As is typical in the pharmaceutical industry, Schering-Plough
    licenses manufacturing, marketing
    and/or
    distribution rights to certain products to others, and also
    manufactures, markets
    and/or
    distributes products
    
    24
 
    owned by others pursuant to licensing and joint venture
    arrangements. Any time that third parties are involved, there
    are additional factors relating to the third party and outside
    the control of Schering-Plough that may create positive or
    negative impacts on Schering-Plough. VYTORIN, ZETIA and REMICADE
    are subject to such arrangements and are key to
    Schering-Plough’s current business and financial
    performance.
 
    In addition, any potential strategic alternatives may be
    impacted by the change of control provisions in those
    arrangements, which could result in VYTORIN and ZETIA being
    acquired by Merck or REMICADE reverting back to Centocor. The
    change in control provision relating to VYTORIN and ZETIA is
    included in the contract with Merck, filed as Exhibit 10(r)
    to Schering-Plough’s 2007
    10-K/A, and
    the change of control provision relating to REMICADE is
    contained in the contract with Centocor, filed as
    Exhibit 10(v) to Schering-Plough’s 2007
    10-K/A.
 
    Cholesterol
    Franchise
 
    Schering-Plough’s cholesterol franchise products, VYTORIN
    and ZETIA, are managed through a joint venture between
    Schering-Plough and Merck for the treatment of elevated
    cholesterol levels in all markets outside Japan. ZETIA is
    Schering-Plough’s novel cholesterol absorption inhibitor.
    VYTORIN is the combination of ZETIA and Zocor (simvastatin), a
    statin medication developed by Merck. The financial commitment
    to compete in the cholesterol reduction market is shared with
    Merck, and profits from the sales of VYTORIN and ZETIA are also
    shared with Merck. The operating results of the joint venture
    with Merck are recorded using the equity method of accounting.
 
    The cholesterol-reduction market is the single largest
    pharmaceutical category in the world. VYTORIN and ZETIA are
    competing in this market. During the first three months of 2008,
    total sales of VYTORIN and ZETIA in the U.S. declined
    5 percent as compared to the first three months of 2007. As
    of March 2008, total combined prescription share for VYTORIN and
    ZETIA in the U.S. was down approximately three market share
    points versus December 2007 from 16.9 percent to
    14.2 percent. Subsequent prescription data in April 2008
    indicates a further decline. Media reaction to the release of
    the results of the ENHANCE clinical trial in early 2008 led some
    commentators to call for the use of other products, rather than
    VYTORIN and ZETIA. Continued reductions in the sales
    and/or
    market share of Schering-Plough’s cholesterol franchise
    would have a significant impact on Schering-Plough’s
    consolidated results of operations and cash flows as
    Schering-Plough’s current profitability is largely
    dependent upon the performance of the cholesterol franchise.
 
    Japan is not included in the joint venture with Merck. In the
    Japanese market, Bayer Healthcare is co-marketing
    Schering-Plough’s cholesterol-absorption inhibitor, ZETIA,
    which was approved in Japan in April 2007 as a monotherapy and
    co-administered with a statin for use in patients with
    hypercholesterolemia, familial hypercholesterolemia or
    homozygous sitosterolemia. ZETIA was launched in Japan during
    June 2007. Schering-Plough’s sales of ZETIA in Japan under
    the co-marketing agreement with Bayer Healthcare are recognized
    in net sales.
 
    License
    Arrangements with Centocor
 
    REMICADE is prescribed for the treatment of inflammatory
    diseases such as rheumatoid arthritis, early rheumatoid
    arthritis, psoriatic arthritis, Crohn’s disease, ankylosing
    spondylitis, plaque psoriasis and ulcerative colitis. REMICADE
    is Schering-Plough’s second largest marketed pharmaceutical
    product line (after the cholesterol franchise). REMICADE is
    licensed from and manufactured by Centocor, Inc., a
    Johnson & Johnson company. During 2005,
    Schering-Plough exercised an option under its contract with
    Centocor for license rights to develop and commercialize
    golimumab, a fully human monoclonal antibody currently in
    Phase III trials. Schering-Plough has exclusive marketing
    rights to both products outside the U.S., Japan and certain
    Asian markets. In December 2007, Schering-Plough and Centocor
    revised their distribution agreement regarding the development,
    commercialization and distribution of both REMICADE and
    golimumab, extending Schering-Plough’s rights to
    exclusively market REMICADE to match the duration of
    Schering-Plough’s exclusive marketing rights for golimumab.
    Effective upon regulatory approval of golimumab in the EU,
    Schering-Plough’s marketing rights for both products will
    now extend for 15 years after the first commercial sale of
    golimumab within the EU. Centocor will receive a progressively
    increased share of profits on Schering-
    
    25
 
    Plough’s distribution of both products in the
    Schering-Plough marketing territory between 2010 and 2014, and
    the share of profits will remain fixed thereafter for the
    remainder of the term. The changes to the duration of REMICADE
    marketing rights and the profit sharing arrangement for the
    products are all conditioned on approval of golimumab being
    granted prior to September 1, 2014. Schering-Plough may
    independently develop and market golimumab for a Crohn’s
    disease indication in its territories, with an option for
    Centocor to participate. In addition, Schering-Plough and
    Centocor agreed to utilize an autoinjector device in the
    commercialization of golimumab and further agreed to share its
    development costs.
 
    Manufacturing,
    Sales and Marketing
 
    Schering-Plough supports commercialized products with
    manufacturing, sales and marketing efforts. Schering-Plough is
    also moving forward with additional investments to enhance its
    infrastructure and business, including capital expenditures for
    the drug development process (where products are moved from the
    drug discovery pipeline to markets), information technology
    systems, and post-marketing studies and monitoring.
 
    Schering-Plough continually reviews the business, including
    manufacturing operations, to identify actions that will enhance
    long-term competitiveness. However, Schering-Plough’s
    manufacturing cost base is relatively fixed, and actions to
    significantly reduce Schering-Plough’s manufacturing
    infrastructure, including specific reviews of
    Schering-Plough’s manufacturing operations that will be
    made as part of the Productivity Transformation Program, involve
    complex issues. As a result, shifting products between
    manufacturing plants can take many years due to construction and
    regulatory requirements, including revalidation and registration
    requirements.
 
    Regulatory
    and Competitive Environment
 
    Schering-Plough is subject to the jurisdiction of various
    national, state and local regulatory agencies. Regulatory
    compliance is complex and costly, impacting the timing needed to
    bring new drugs to market and to market drugs for new
    indications.
 
    Schering-Plough engages in clinical trial research in many
    countries around the world. Research activities must comply with
    stringent regulatory standards and are subject to inspection by
    the U.S., the EU, and local country regulatory authorities.
    Schering-Plough is subject to pharmacovigilance reporting
    requirements in many countries and other jurisdictions,
    including the U.S., the EU, and the EU member states. Clinical
    trials and post-marketing surveillance of certain marketed drugs
    of competitors within the industry have raised safety concerns
    that have led to recalls, withdrawals or adverse labeling of
    marketed products.
 
    A number of intermediaries are involved between drug
    manufacturers, such as Schering-Plough, and patients who use the
    drugs. These intermediaries impact the patient’s ability,
    and their prescribers’ ability, to choose and pay for a
    particular drug. These intermediaries include health care
    providers, such as hospitals and clinics; payors and their
    representatives, such as employers, insurers, managed care
    organizations and governments; and others in the supply chain,
    such as pharmacists and wholesalers. Further, in the U.S., many
    of Schering-Plough’s pharmaceutical products are subject to
    increasingly competitive pricing as certain of the
    intermediaries (including managed care groups, institutions and
    government agencies) seek price discounts. In most international
    markets, Schering-Plough operates in an environment of
    government-mandated cost-containment programs. Also, the
    pricing, sales and marketing programs and arrangements, and
    related business practices of Schering-Plough and other
    participants in the health care industry are under continued
    scrutiny from federal and state regulatory, investigative,
    prosecutorial and administrative entities.
 
    The market for pharmaceutical products is competitive.
    Schering-Plough’s operations may be affected by
    technological advances of competitors, industry consolidation,
    patents granted to competitors, loss of patent protection due to
    challenges by competitors, competitive combination products, new
    products of competitors, new information from clinical trials of
    marketed products or post-marketing surveillance and generic
    competition as Schering-Plough’s products mature.
    
    26
 
    OBS
    Acquisition
 
    On November 19, 2007, Schering-Plough acquired OBS for a
    purchase price of approximately Euro 11 billion in
    cash, or approximately $16.1 billion.
 
    Commencing from the acquisition date, OBS’ assets acquired
    and liabilities assumed, as well as the results of OBS’
    operations, are included in Schering-Plough’s consolidated
    financial statements.
 
    The impact of purchase accounting, based on a preliminary
    valuation, resulted in the following non-cash pre-tax items in
    the first three months of 2008:
 
    |  |  |  | 
    |  | • | Amortization of inventory adjusted to fair value, of which
    approximately $1.1 billion will be charged to cost of sales
    over an approximate one-year period from the acquisition date
    ($551 million in the first quarter of 2008). | 
|  | 
    |  | • | Amortization of acquired intangible assets adjusted to fair
    value, of which $6.8 billion will be amortized over a
    weighted-average life of 15 years to cost of sales
    ($132 million in the first quarter of 2008). | 
|  | 
    |  | • | Incremental depreciation relating to the adjustment in fair
    value on property, plant and equipment of $896 million that
    will be depreciated over the lives of the applicable plant and
    equipment primarily to cost of sales ($8 million in the
    first quarter of 2008). | 
 
    DISCUSSION
    OF OPERATING RESULTS
 
    The results of operations for the first quarter of 2008
    discussed below include OBS’ product sales and expenses as
    well as certain non-cash items relating to purchase accounting
    associated with the OBS acquisition.
 
    Net
    Sales
 
    A significant portion of net sales is made to major
    pharmaceutical and health care product distributors and major
    retail chains in the U.S. Consequently, net sales and
    quarterly growth comparisons may be affected by fluctuations in
    the buying patterns of major distributors, retail chains and
    other trade buyers. These fluctuations may result from
    seasonality; pricing; wholesaler, retail and trade buying
    decisions; changes in overall demand factors or other factors.
    In addition to these fluctuations, sales of many pharmaceutical
    products in the U.S. are subject to increased pricing
    pressure from managed care groups, institutions, government
    agencies, and other groups seeking discounts. Schering-Plough
    and other pharmaceutical manufacturers in the U.S. market
    are also required to provide statutorily defined rebates to
    various government agencies in order to participate in the
    Medicaid program, veterans’ health care programs and other
    government-funded programs. The Medicare Prescription Drug
    Improvement and Modernization Act of 2003 contains a
    prescription drug benefit for individuals who are eligible for
    Medicare. This prescription drug benefit became effective on
    January 1, 2006 and is resulting in increased use of
    generics and increased purchasing power of those negotiating on
    behalf of Medicare recipients. In most international markets,
    Schering-Plough operates in an environment where governments
    have mandated cost-containment programs, placed restrictions on
    physician prescription levels and patient reimbursements,
    emphasized greater use of generic drugs and enacted
    across-the-board price cuts as methods to control costs.
 
    Consolidated net sales for the three months ended March 31,
    2008 totaled $4.7 billion, an increase of $1.7 billion
    or 56 percent as compared to the same period in 2007.
    Consolidated net sales for the three months ended March 31,
    2008 included $1.3 billion of net sales of OBS products.
    The increase in net sales also reflects the growth in sales
    volumes of REMICADE, TEMODAR and AVELOX as well as Animal Health
    and Consumer Health Care products. For the three months ended
    March 31, 2008, net sales outside the U.S. totaled
    $3.2 billion, or 69 percent, of consolidated net
    sales. Net sales reflect a favorable impact of 7 percent
    from foreign exchange on stand-alone Schering-Plough net sales.
    The impact of currency is more pronounced on products and
    businesses that are concentrated in Europe.
    
    27
 
    Net sales for the three months ended March 31, 2008 and
    2007 were as follows:
 
    |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  | Increase 
 |  | 
|  |  | 2008 |  |  | 2007 |  |  | (Decrease) |  | 
|  |  | (Dollars in millions) |  |  | (%) |  | 
|  | 
| 
    HUMAN PRESCRIPTION PHARMACEUTICALS
 |  | $ | 3,557 |  |  | $ | 2,398 |  |  |  | 48 |  | 
| 
    REMICADE
 |  |  | 507 |  |  |  | 373 |  |  |  | 36 |  | 
| 
    NASONEX
 |  |  | 307 |  |  |  | 284 |  |  |  | 8 |  | 
| 
    TEMODAR
 |  |  | 236 |  |  |  | 196 |  |  |  | 20 |  | 
| 
    PEGINTRON
 |  |  | 225 |  |  |  | 217 |  |  |  | 4 |  | 
| 
    CLARINEX/AERIUS
 |  |  | 213 |  |  |  | 204 |  |  |  | 4 |  | 
| 
    FOLLISTIM/PUREGON
 |  |  | 145 |  |  |  | — |  |  |  | N/M |  | 
| 
    AVELOX
 |  |  | 142 |  |  |  | 115 |  |  |  | 24 |  | 
| 
    CLARITIN Rx
 |  |  | 128 |  |  |  | 112 |  |  |  | 14 |  | 
| 
    NUVARING
 |  |  | 96 |  |  |  | — |  |  |  | N/M |  | 
| 
    INTEGRILIN
 |  |  | 74 |  |  |  | 84 |  |  |  | (13 | ) | 
| 
    CAELYX
 |  |  | 74 |  |  |  | 62 |  |  |  | 20 |  | 
| 
    REMERON
 |  |  | 68 |  |  |  | — |  |  |  | N/M |  | 
| 
    ZEMURON
 |  |  | 63 |  |  |  | — |  |  |  | N/M |  | 
| 
    REBETOL
 |  |  | 59 |  |  |  | 71 |  |  |  | (17 | ) | 
| 
    Other Pharmaceutical
 |  |  | 1,220 |  |  |  | 680 |  |  |  | 79 |  | 
| 
    ANIMAL HEALTH
 |  |  | 723 |  |  |  | 232 |  |  |  | 211 |  | 
| 
    CONSUMER HEALTH CARE
 |  |  | 377 |  |  |  | 345 |  |  |  | 9 |  | 
| 
    OTC
 |  |  | 209 |  |  |  | 177 |  |  |  | 18 |  | 
| 
    Foot Care
 |  |  | 85 |  |  |  | 78 |  |  |  | 9 |  | 
| 
    Sun Care
 |  |  | 83 |  |  |  | 90 |  |  |  | (7 | ) | 
|  |  |  |  |  |  |  |  |  |  |  |  |  | 
| 
    CONSOLIDATED NET SALES
 |  | $ | 4,657 |  |  | $ | 2,975 |  |  |  | 56 |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  | 
    N/M — Not a meaningful percentage.
 
 
    Sales of Human Prescription Pharmaceuticals in the first quarter
    of 2008 totaled $3.6 billion, a $1.2 billion or 48%
    increase as compared to the first quarter of 2007. Included in
    the first quarter of 2008 was $861 million of net sales
    related to Organon, the human health business of OBS. Excluding
    OBS sales, net sales of Human Prescription Pharmaceuticals
    declined 2 percent in the U.S.
 
    International net sales of REMICADE, a drug for the treatment of
    immune-mediated inflammatory disorders such as rheumatoid
    arthritis, early rheumatoid arthritis, psoriatic arthritis,
    Crohn’s disease, ankylosing spondylitis, plaque psoriasis,
    and ulcerative colitis, were up $134 million or
    36 percent to $507 million in the first quarter of
    2008, driven by continued market growth, expanded use across
    indications and a favorable impact from foreign exchange.
    Competitive products for the indications referred to above were
    introduced during 2007 and 2008.
 
    Global net sales of NASONEX Nasal Spray, a once-daily
    corticosteroid nasal spray for allergies, rose 8 percent to
    $307 million in the first quarter of 2008 due to increased
    sales in international markets, partially offset by a decline in
    sales in the United States. Competitive products were introduced
    in 2007 and 2008.
 
    Global net sales of TEMODAR Capsules, a treatment for certain
    types of brain tumors, increased $40 million or
    20 percent to $236 million in the first quarter of
    2008 due to increased sales across all geographic regions.
 
    Global net sales of PEGINTRON Powder for Injection, a pegylated
    interferon product for treating hepatitis C, increased
    4 percent to $225 million in the first three months of
    2008 due to higher sales in Latin
    
    28
 
    America, emerging markets across Europe and a favorable impact
    from foreign exchange, tempered by lower sales in Japan and the
    United States.
 
    Global net sales of CLARINEX (marketed as AERIUS in many
    countries outside the U.S.), for the treatment of seasonal
    outdoor allergies and year-round indoor allergies, increased
    4 percent to $213 million in the first quarter of
    2008. Higher sales of CLARINEX in international markets were
    partially offset by lower sales in the U.S.
 
    Global net sales of FOLLISTIM/PUREGON, a recombinant
    follicle-stimulating hormone for treating infertility, were
    $145 million in the first quarter of 2008, the first full
    quarter of sales since the acquisition of OBS in November 2007.
 
    Net sales of AVELOX, a fluoroquinolone antibiotic for the
    treatment of certain respiratory and skin infections, sold
    primarily in the U.S. by Schering-Plough as a result of its
    license agreement with Bayer, increased $27 million or
    24 percent to $142 million in the first quarter of
    2008 primarily as a result of increased market share.
 
    International net sales of prescription CLARITIN increased
    14 percent to $128 million in the first quarter of
    2008 as a result of increased sales in Japan due to an early
    allergy season and favorable foreign exchange.
 
    Global net sales of NUVARING, a contraception product, were
    $96 million in the first quarter of 2008, the first full
    quarter of sales since the acquisition of OBS in November 2007.
 
    Global net sales of INTEGRILIN Injection, a glycoprotein
    platelet aggregation inhibitor for the treatment of patients
    with acute coronary syndrome, which is sold primarily in the
    U.S. by Schering-Plough, decreased 13 percent to
    $74 million in the first quarter of 2008 primarily due to a
    decrease in U.S. market size.
 
    International net sales of CAELYX, for the treatment of ovarian
    cancer, metastatic breast cancer and Kaposi’s sarcoma,
    increased 20 percent to $74 million in the first
    quarter of 2008 due to higher sales across Europe.
 
    Global net sales of REMERON, an antidepressant, were
    $68 million in the first quarter of 2008, the first full
    quarter of sales since the acquisition of OBS in November 2007.
 
    Global net sales of ZEMURON, a muscle relaxant used in surgical
    procedures, were $63 million in the first quarter of 2008,
    the first full quarter of sales since the acquisition of OBS in
    November 2007. ZEMURON will lose patent exclusivity in the
    U.S. in 2008 and in the EU in 2009.
 
    Global net sales of REBETOL Capsules, for use in combination
    with PEGINTRON or INTRON A for treating hepatitis C,
    decreased 17 percent to $59 million in the first
    quarter of 2008 due to continued lower patient enrollment in
    Japan.
 
    Other pharmaceutical net sales include a large number of lower
    sales volume human prescription pharmaceutical products and
    included $489 million of OBS net sales in the first quarter
    of 2008. Several of these products are sold in limited markets
    outside the U.S., and many are multiple-source products no
    longer protected by patents. These products include treatments
    for respiratory, cardiovascular, dermatological, infectious,
    oncological and other diseases.
 
    Global net sales of Animal Health products increased
    211 percent in the first quarter of 2008 to
    $723 million. Included in global Animal Health net sales
    for the first quarter of 2008 was $454 million related to
    Intervet, the animal health business of OBS. Global net sales in
    the first quarter of 2008 also benefited from solid growth in
    all geographic areas, coupled with a positive impact from
    foreign currency exchange rates. The Animal Health
    segment’s sales growth rate is impacted by intense
    competition and the frequent introduction of generic products.
    In April 2008, Schering-Plough announced the planned divestiture
    of certain animal health products in connection with conditions
    set forth by the European Commission as part of the acquisition
    of Intervet. Net sales of the planned divested products have not
    been material.
 
    Global net sales of Consumer Health Care products, which include
    OTC, foot care and sun care products, increased $32 million
    or 9 percent to $377 million in the first quarter of
    2008. The increase in the first quarter
    
    29
 
    of 2008 was primarily due to sales of MiraLAX, which was
    launched in February 2007 as the first Rx-to-OTC switch in the
    laxative category in more than 30 years, and higher sales
    of OTC CLARITIN. Sales of OTC CLARITIN were $139 million in
    the first quarter of 2008, an increase of $12 million from
    the first quarter of 2007. Sales of OTC CLARITIN grew despite
    the aggressive launch of a competing OTC cetirizine allergy
    product. OTC CLARITIN will continue to face competition from
    this cetirizine allergy product and other store brands. Future
    sales in the Consumer Health Care segment are difficult to
    predict because the consumer health care market is highly
    competitive, with heavy advertising to consumers and frequent
    competitive product introductions.
 
    Costs,
    Expenses and Equity Income
 
    A summary of costs, expenses and equity income for the three
    months ended March 31, 2008 and 2007 is as follows:
 
    |  |  |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  | Increase 
 | 
|  |  | 2008 |  |  | 2007 |  |  | (Decrease) | 
|  |  | (Dollars in millions) |  |  | % | 
|  | 
| 
    Gross margin
 |  |  | 54.1 | % |  |  | 68.5 | % |  | (14.4%) | 
| 
    Selling, general and administrative (SG&A)
 |  | $ | 1,676 |  |  | $ | 1,213 |  |  | 38% | 
| 
    Research and development (R&D)
 |  |  | 880 |  |  |  | 707 |  |  | 24% | 
| 
    Other expense/(income), net
 |  |  | 95 |  |  |  | (48 | ) |  | N/M | 
| 
    Special and acquisition-related charges
 |  |  | 23 |  |  |  | 1 |  |  | N/M | 
| 
    Equity income
 |  |  | (517 | ) |  |  | (487 | ) |  | 6% | 
 
    N/M — Not a meaningful percentage.
 
    Substantially all the sales of cholesterol products are not
    included in Schering-Plough’s net sales. The results of
    these sales are reflected in equity income. In addition, due to
    the virtual nature of the joint venture, Schering-Plough incurs
    substantial selling, general and administrative expenses that
    are not captured in equity income but are included in
    Schering-Plough’s Statements of Consolidated Operations. As
    a result, Schering-Plough’s gross margin, and ratios of
    SG&A expenses and R&D expenses as a percentage of net
    sales do not reflect the benefit of the impact of the joint
    venture’s operating results.
 
 
    Gross
    margin
 
    Gross margin decreased to 54.1 percent in the first quarter
    of 2008 as compared to 68.5 percent in the first quarter of
    2007. Gross margin in the first quarter of 2008 was unfavorably
    impacted by $688 million of purchase accounting items
    included in cost of sales. These purchase accounting items
    resulted from the amortization of fair values of certain assets
    acquired as part of the OBS acquisition.
 
    Selling,
    general and administrative
 
    Selling, general and administrative expenses were
    $1.7 billion in the first quarter of 2008, up
    38 percent versus the prior year period. Included in
    SG&A in the first quarter of 2008 was approximately
    $400 million from OBS. In addition, SG&A reflects
    unfavorable foreign exchange partially offset by a
    SFAS 123R fair value remeasurement of $35 million made
    to an incentive plan that is based on the performance of
    Schering-Plough’s stock price.
 
    Research
    and development
 
    Research and development spending increased 24 percent to
    $880 million in the first quarter of 2008. Included in
    R&D in the first quarter of 2008 was approximately
    $225 million from OBS. Included in R&D spending in the
    first quarter of 2007 was $96 million related to upfront
    payments made for licensing transactions. The increase in
    R&D spending versus the first quarter of 2007 also reflects
    higher spending for clinical trials and related activities and
    investments to build greater breadth and capacity to support the
    continued expansion of Schering-Plough’s pipeline.
    Generally, changes in R&D spending reflect the timing of
    
    30
 
    Schering-Plough’s funding of both internal research efforts
    and research collaborations with various partners to discover
    and develop a steady flow of innovative products.
 
    To maximize its chances for the successful development of new
    products, Schering-Plough began a Development Excellence
    initiative in 2005 to build talent and critical mass, create a
    uniform level of excellence and deliver on high-priority
    programs within R&D. In 2006, Schering-Plough began a
    Global Clinical Harmonization Program to maximize and globalize
    the quality of clinical trial execution, pharmacovigilance and
    regulatory processes. Beginning in 2007, certain aspects of the
    Global Clinical Harmonization Program have been implemented and
    are being integrated into the processes of OBS.
 
    Other
    expense/(income), net
 
    Schering-Plough had $95 million of other expense, net, in
    the first quarter of 2008 as compared to $48 million of
    other income, net, in 2007, reflecting $101 million of
    higher interest expense and $60 million less interest
    income. The increase in interest expense was due to the issuance
    of new debt in connection with the acquisition of OBS, and the
    decrease in interest income was due to the use of cash for the
    acquisition of OBS.
 
    Special
    and acquisition-related charges
 
    During the three months ended March 31, 2008 and 2007,
    Schering-Plough incurred $23 million and $1 million,
    respectively, of integration-related costs for the OBS
    acquisition. The integration-related costs for the three months
    ended March 31, 2008 included $8 million of employee
    termination costs.
 
    The following table summarizes the charges, cash payments and
    liabilities related to employee termination costs through
    March 31, 2008:
 
    |  |  |  |  |  | 
|  |  | Employee 
 |  | 
|  |  | Termination 
 |  | 
|  |  | Costs(a) |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Accrued liability at December 31, 2007
 |  | $ | 23 | (b) | 
| 
    Charges
 |  |  | 8 |  | 
| 
    Cash payments
 |  |  | (6 | ) | 
|  |  |  |  |  | 
| 
    Accrued liability at March 31, 2008
 |  | $ | 25 |  | 
|  |  |  |  |  | 
 
    |  |  |  | 
    | (a) |  | Recorded to special and acquisition-related charges. | 
|  | 
    | (b) |  | Represents employee termination costs recorded under
    SFAS No. 112, “Employers’ Accounting for
    Postemployment Benefits,” in the fourth quarter of 2007. | 
 
 
    Equity
    income
 
    Sales of the Merck/Schering-Plough cholesterol joint venture for
    the three months ended March 31, 2008 and 2007 totaled
    $1.2 billion in each period.
 
    The companies bear the costs of their own general sales forces
    and commercial overhead in marketing joint venture products
    around the world. In the U.S., Canada and Puerto Rico, the
    cholesterol agreements provide for a reimbursement to each
    company for physician details that are set on an annual basis,
    and in Italy, a contractual amount is included in the profit
    sharing calculation that is not reimbursed. In the U.S., Canada
    and Puerto Rico, this amount is equal to each company’s
    physician details multiplied by a contractual fixed fee.
    Schering-Plough reports these amounts as part of equity income.
    These amounts do not represent a reimbursement of specific,
    incremental and identifiable costs for Schering-Plough’s
    detailing of the cholesterol products in these markets. In
    addition, these amounts are not reflective of
    Schering-Plough’s sales effort related to the joint
    venture, as Schering-Plough’s sales force and related costs
    associated with the joint venture are generally estimated to be
    higher.
    
    31
 
    Costs of the joint venture that the companies contractually
    share are a portion of manufacturing costs, specifically
    identified promotion costs (including direct-to-consumer
    advertising and direct and identifiable out-of-pocket promotion)
    and other agreed upon costs for specific services such as market
    support, market research, market expansion, a specialty sales
    force and physician education programs.
 
    Certain specified research and development expenses are
    generally shared equally by Schering-Plough and Merck.
 
    Equity income from the Merck/Schering-Plough joint venture
    totaled $517 million and $487 million for the three
    months ended March 31, 2008 and 2007, respectively. The
    increase in 2008 equity income as compared to 2007 reflects
    sales growth in international markets partially offset by a
    5 percent decline in U.S. sales of cholesterol
    products. See “Outlook” for additional information on
    equity income. Schering-Plough’s equity income in the first
    three months of the year is favorably impacted by the
    proportionally greater share of income allocated from the joint
    venture on the first $300 million of annual ZETIA sales.
 
    It should be noted that Schering-Plough incurs substantial
    selling, general and administrative and other costs, which are
    not reflected in equity income and instead are included in the
    overall cost structure of Schering-Plough.
 
    Provision
    for income taxes
 
    Tax expense was $72 million for the three months ended
    March 31, 2008 as compared to $87 million for the
    three months ended March 31, 2007. The tax provision for
    the first quarter of 2008 included tax benefits of
    $91 million related to the amortization of fair values of
    certain assets acquired as part of the OBS acquisition. The
    income tax expense primarily relates to foreign taxes and does
    not include any benefit related to U.S. operating losses.
 
    Schering-Plough expects to report a U.S. Net Operating Loss
    (NOL) carryforward of approximately $1.7 billion on its
    2007 tax return, which will be available to offset future
    U.S. taxable income through 2027. This U.S. NOL
    carryforward could be materially reduced after examination of
    Schering-Plough’s income tax returns by the Internal
    Revenue Service (IRS). Schering-Plough continues to maintain a
    valuation allowance against its U.S. deferred tax assets,
    as management cannot conclude that it is more likely than not
    the benefit of the U.S. net deferred tax assets can be
    realized.
 
    LIQUIDITY
    AND FINANCIAL RESOURCES
 
    Discussion
    of Cash Flow
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | Three Months Ended March 31, |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Cash flow from operating activities
 |  | $ | 462 |  |  | $ | (248 | ) | 
| 
    Cash flow from investing activities
 |  |  | (123 | ) |  |  | 113 |  | 
| 
    Cash flow from financing activities
 |  |  | (184 | ) |  |  | (48 | ) | 
 
    Operating
    Activities
 
    In the first three months of 2008, operating activities provided
    $462 million of cash, compared with net cash used for
    operations of $248 million in the first three months of
    2007. The improved operating cash flow was primarily due to the
    non-recurrence of payments in the first quarter of 2007 of
    $379 million related to the settlement of the Massachusetts
    Investigation, and the purchase of a foreign currency option for
    $130 million related to the OBS acquisition.
    
    32
 
    Investing
    Activities
 
    Net cash used for investing activities during the first three
    months of 2008 was $123 million and included
    $175 million of capital expenditures partially offset by
    proceeds from the disposition of property and equipment of
    $27 million and the maturity of short-term investments of
    $25 million. Net cash provided by investing activities for
    the first three months of 2007 was $113 million and
    included a net reduction of short-term investments of
    $266 million partially offset by $139 million of
    capital expenditures.
 
    Financing
    Activities
 
    Net cash used for financing activities was $184 million for
    the first three months of 2008, compared to $48 million for
    the same period in 2007. Uses of cash for financing activities
    for the three months ended March 31, 2008 and 2007 included
    the payment of dividends on common and preferred shares of
    $143 million and $104 million, respectively. Financing
    cash flow for the first three months of 2007 also reflected
    proceeds of $52 million on the exercise of stock options.
 
    Other
    Discussion of Cash Flows
 
    At March 31, 2008, Schering-Plough had net debt (total debt
    less cash, cash equivalents, short-term investments and
    marketable securities) of $7.3 billion. Cash generated from
    operations, available cash and short-term investments and
    available credit facilities are expected to provide
    Schering-Plough with the ability to fund cash needs for the
    intermediate term.
 
    Borrowings
    and Credit Facilities
 
    At March 31, 2008 and December 31, 2007, short-term
    borrowings totaled $487 million and $461 million,
    respectively, including outstanding commercial paper of
    $148 million at March 31, 2008 and $149 million
    at December 31, 2007.
 
    Long-term debt at March 31, 2008 and December 31, 2007
    was $9.3 billion and $9.0 billion, respectively, and
    includes euro-denominated notes and a euro-denominated term
    loan. The increase at March 31, 2008 was due to foreign
    currency translation.
 
    Schering-Plough has a $2.0 billion credit facility with a
    syndicate of banks available for general corporate purposes.
    This facility has a floating interest rate, matures in August
    2012 and is considered as support to Schering-Plough’s
    commercial paper borrowings. As of March 31, 2008, no
    borrowings were outstanding under this facility.
 
    Schering-Plough’s current unsecured senior credit ratings
    and ratings review status are as follows:
 
    |  |  |  |  |  |  |  |  |  |  |  | 
| 
    Senior Unsecured Credit Ratings
 |  | Long-Term |  |  | Short-Term |  |  | Long-Term Review Status | 
|  | 
| 
    Moody’s Investors Service
 |  |  | Baa1 |  |  |  | P-2 |  |  | Negative Outlook | 
| 
    Standard and Poor’s
 |  |  | A- |  |  |  | A-2 |  |  | Negative Watch | 
| 
    Fitch Ratings
 |  |  | BBB+ |  |  |  | F-2 |  |  | Negative Watch | 
 
    The short-term ratings discussed above have not significantly
    affected Schering-Plough’s ability to issue or rollover its
    outstanding commercial paper borrowings at this time. However,
    Schering-Plough believes the ability of commercial paper
    issuers, such as Schering-Plough, with one or more short-term
    credit ratings of
    P-2 from
    Moody’s,
    A-2 from
    S&P
    and/or F-2
    from Fitch to issue or rollover outstanding commercial paper
    can, at times, be less than that of companies with higher
    short-term credit ratings. In addition, the total amount of
    commercial paper capacity available to these issuers is
    typically less than that of higher-rated companies.
    Schering-Plough’s sizable lines of credit with commercial
    banks as well as cash and short-term investments held by
    U.S. and international subsidiaries serve as alternative
    sources of liquidity and to support its commercial paper program.
    
    33
 
    Contractual
    Obligations
 
    Schering-Plough’s contractual obligations as of
    December 31, 2007 were included in tabular format in
    Item 7, “Management’s Discussion and Analysis of
    Financial Condition and Results of Operations,” of the 2007
    10-K/A.
 
    Payments due by period for interest payment obligations on
    Schering-Plough’s debt as of December 31, 2007 are as
    follows: less than one year, $550 million; one to three
    years, $1.0 billion; three to five years,
    $924 million; more than five years, $3.8 billion.
 
    Potential milestone payments of $2.3 billion were not
    included in the contractual obligations table as they are
    contingent on the achievement of various research and
    development (approximately $600 million), regulatory
    approval (approximately $700 million) or sales-based
    (approximately $1.0 billion) milestones. Research,
    development and regulatory milestones depend upon future
    clinical developments as well as regulatory agency actions which
    may never occur. Sales-based milestones are contingent on
    generating levels of sales of current or future products that
    have not yet been achieved.
 
    REGULATORY
    AND COMPETITIVE ENVIRONMENT IN WHICH SCHERING-PLOUGH
    OPERATES
 
    Schering-Plough is subject to the jurisdiction of various
    national, state and local regulatory agencies. The regulations
    to which Schering-Plough is subject are described in more detail
    in Part I, Item I, “Business,” of
    Schering-Plough’s 2007
    10-K/A.
    Regulatory compliance is complex, as regulatory standards
    (including Good Clinical Practices, Good Laboratory Practices
    and Good Manufacturing Practices) vary by jurisdiction and are
    constantly evolving. Regulatory compliance is also costly.
    Regulatory compliance also impacts the timing needed to bring
    new drugs to market and to market drugs for new indications.
    Further, failure to comply with regulations can result in delays
    in the approval of drugs, seizure or recall of drugs, suspension
    or revocation of the authority necessary for the production and
    sale of drugs, fines and other civil or criminal sanctions.
 
    Regulatory compliance, and the cost of compliance failures, can
    have a material impact on Schering-Plough’s results of
    operations, its cash flows or financial condition.
 
    Much is still unknown about the science of human health and with
    every drug there are benefits and risks. Societal and government
    pressures are constantly shifting between the demand for
    innovation to meet urgent unmet medical needs and adversity to
    risk. These pressures impact the regulatory environment and the
    market for Schering-Plough’s products.
 
    Regulatory
    Compliance and Pharmacovigilance
 
    Regulatory
    Inspections
 
    Schering-Plough is subject to pharmacovigilance reporting
    requirements in many countries and other jurisdictions,
    including the U.S., the EU, and the EU member states. The
    requirements differ from jurisdiction to jurisdiction, but all
    include requirements for reporting adverse events that occur
    while a patient is using a particular drug in order to alert the
    drug’s manufacturer and the governmental agency to
    potential problems.
 
    During 2003, pharmacovigilance inspections by officials of the
    British and French medicines agencies conducted at the request
    of the European Medicines Agency (EMEA) cited serious
    deficiencies in reporting processes. Schering-Plough has
    continued to work on its long-term action plan to rectify the
    deficiencies and has provided regular updates to the EMEA.
 
    During the fourth quarter of 2005, local UK and EMEA regulatory
    authorities conducted a
    follow-up
    inspection to assess Schering-Plough’s implementation of
    its action plan. In the first quarter of 2006, these authorities
    also inspected the
    U.S.-based
    components of Schering-Plough’s pharmacovigilance system.
    The inspectors acknowledged that progress had been made since
    2003, but also continued to note significant concerns with the
    quality systems supporting Schering-Plough’s
    pharmacovigilance processes. Similarly, in a
    follow-up
    inspection of Schering-Plough’s clinical trial practices in
    the UK, inspectors identified issues with respect to
    Schering-Plough’s management of clinical trials and related
    pharmacovigilance practices.
    
    34
 
    In February 2006, Schering-Plough began the Global Clinical
    Harmonization Program for building clinical excellence (in trial
    design, execution and tracking), which will strengthen
    Schering-Plough’s scientific and compliance rigor on a
    global basis. In 2007, certain aspects of the Global Clinical
    Harmonization Program were implemented, and work is expected to
    continue in 2008 and for several years. In addition, during the
    fourth quarter of 2007, the local UK regulatory authority
    conducted a
    follow-up
    inspection which confirmed that the corrective actions committed
    to by Schering-Plough following the 2006 inspection of
    Schering-Plough’s UK-based clinical trial operations had in
    fact been completed. In early January 2008, the local
    UK regulatory authority returned for a
    follow-up
    inspection of Schering-Plough’s UK pharmacovigilance
    operations. This inspection likewise confirmed that a number of
    corrective actions had been completed since the last inspection
    and noted the number of actions Schering-Plough had taken as set
    forth in Schering-Plough’s periodic updates to the EMEA and
    noted a limited number of observations that Schering-Plough is
    addressing. Schering-Plough intends to continue upgrading
    skills, processes and systems in clinical practices and
    pharmacovigilance. Schering- Plough remains committed to
    accomplish this work and to invest significant resources in this
    area.
 
    Schering-Plough does not know what action, if any, the EMEA or
    national authorities will take in response to the inspections.
    Possible actions include further inspections, demands for
    improvements in reporting systems, criminal sanctions against
    Schering- Plough
    and/or
    responsible individuals and changes in the conditions of
    marketing authorizations for Schering-Plough’s products.
 
    Regulatory
    Compliance and Post-Marketing Surveillance
 
    Schering-Plough engages in clinical trial research in many
    countries around the world. These clinical trial research
    activities must comply with stringent regulatory standards and
    are subject to inspection by U.S., EU and local country
    regulatory authorities. Failure to comply with current Good
    Clinical Practices or other applicable laws or regulations can
    result in delays in approval of clinical trials, suspension of
    ongoing clinical trials, delays in approval of marketing
    authorizations, criminal sanctions against Schering-Plough
    and/or
    responsible individuals, and changes in the conditions of
    marketing authorizations for Schering-Plough’s products.
 
    Clinical trials and post-marketing surveillance of certain
    marketed drugs of competitors within the industry have raised
    safety concerns that have led to recalls, withdrawals or adverse
    labeling of marketed products. In addition, these situations
    have raised concerns among some prescribers and patients
    relating to the safety and efficacy of pharmaceutical products
    in general. For the past several years, these occurrences have
    increased. Recently the intense media attention to the results
    of the ENHANCE clinical trial led to some concerns among
    patients and prescribers about ZETIA and VYTORIN (see discussion
    under “Strategy-Focused on Science” in the Executive
    Overview).
 
    Following this wave of product withdrawals by other companies
    and other significant safety issues, health authorities such as
    the FDA, the EMEA and the PMDA have continued to increase their
    focus on safety when assessing the benefit/risk balance of
    drugs. Some health authorities appear to have become more
    cautious when making decisions about approvability of new
    products or indications and are re-reviewing select products
    that are already marketed, adding further to the uncertainties
    in the regulatory processes. There is also greater regulatory
    scrutiny, especially in the U.S., on advertising and promotion
    and in particular direct-to-consumer advertising.
 
    Similarly, major health authorities, including the FDA, EMEA and
    PMDA, have also increased collaboration amongst themselves,
    especially with regard to the evaluation of safety and
    benefit/risk information. Media attention has also increased. In
    the current environment, a health authority regulatory action in
    one market, such as a safety labeling change, may have
    regulatory, prescribing and marketing implications in other
    markets to an extent not previously seen.
 
    Some health authorities, such as the PMDA in Japan, have
    publicly acknowledged a significant backlog in workload due to
    resource constraints within their agency. This backlog has
    caused long regulatory review times for new indications and
    products and has added to the uncertainty in predicting approval
    timelines in
    
    35
 
    these markets. While the PMDA has committed to correcting the
    backlog and has made some progress over the last year, it is
    expected to continue for the foreseeable future.
 
    These and other uncertainties inherent in government regulatory
    approval processes, including, among other things, delays in
    approval of new products, formulations or indications, may also
    affect Schering-Plough’s operations. The effect of
    regulatory approval processes on operations cannot be predicted.
 
    Schering-Plough has nevertheless achieved a significant number
    of important regulatory approvals since 2004, including
    approvals for VYTORIN, NOXAFIL, CLARINEX D-24, CLARINEX
    REDITABS, CLARINEX D-12, SUBOXONE and new indications for
    TEMODAR and NASONEX. Other significant approvals since 2004
    include ASMANEX DPI (Dry Powder for Inhalation) in the U.S.,
    PEGINTRON, ZETIA, TEMODAR and ESMERON/ESLAX in Japan, and new
    indications for REMICADE. Schering-Plough also has a number of
    significant regulatory submissions filed in major markets
    awaiting approval.
 
    Schering-Plough’s personnel have regular, open dialogue
    with the FDA and other regulators and review product labels and
    other materials on a regular basis and as new information
    becomes known.
 
    Pricing
    Pressures
 
    As described more specifically in Note 17, “Legal,
    Environmental and Regulatory Matters,” under Item 1,
    “Financial Statements,” the pricing, sales and
    marketing programs and arrangements, and related business
    practices of Schering-Plough and other participants in the
    health care industry are under increasing scrutiny from federal
    and state regulatory, investigative, prosecutorial and
    administrative entities. These entities include the Department
    of Justice and its U.S. Attorney’s Offices, the Office
    of Inspector General of the Department of Health and Human
    Services, the FDA, the Federal Trade Commission (FTC) and
    various state Attorneys General offices. Many of the health care
    laws under which certain of these governmental entities operate,
    including the federal and state anti-kickback statutes and
    statutory and common law false claims laws, have been construed
    broadly by the courts and permit the government entities to
    exercise significant discretion. In the event that any of those
    governmental entities believes that wrongdoing has occurred, one
    or more of them could institute civil or criminal proceedings,
    which, if instituted and resolved unfavorably, could subject
    Schering-Plough to substantial fines, penalties and injunctive
    or administrative remedies, including exclusion from government
    reimbursement programs. Schering-Plough also cannot predict
    whether any investigations will affect its marketing practices
    or sales. Any such result could have a material adverse impact
    on Schering-Plough’s results of operations, cash flows,
    financial condition, or its business.
 
    In the U.S., many of Schering-Plough’s pharmaceutical
    products are subject to increasingly competitive pricing as
    managed care groups, institutions, government agencies and other
    groups seek price discounts. In the U.S. market,
    Schering-Plough and other pharmaceutical manufacturers are
    required to provide statutorily defined rebates to various
    government agencies in order to participate in Medicaid, the
    veterans health care program and other government-funded
    programs. The Medicare Prescription Drug Improvement and
    Modernization Act of 2003 contains a prescription drug benefit
    for individuals who are eligible for Medicare. This prescription
    drug benefit became effective on January 1, 2006, and is
    resulting in increased use of generics and increased purchasing
    power of those negotiating on behalf of Medicare recipients.
 
    In most international markets, Schering-Plough operates in an
    environment of government mandated cost-containment programs.
    Several governments have placed restrictions on physician
    prescription levels and patient reimbursements; emphasized
    greater use of generic drugs; and enacted across-the-board price
    cuts as methods to control costs.
 
    Since Schering-Plough is unable to predict the final form and
    timing of any future domestic or international governmental or
    other health care initiatives, including the passage of laws
    permitting the importation of pharmaceuticals into the U.S.,
    their effect on operations and cash flows cannot be reasonably
    estimated. Similarly, the effect on operations and cash flows of
    decisions of government entities, managed care groups and other
    groups concerning formularies and pharmaceutical reimbursement
    policies cannot be reasonably estimated.
    
    36
 
    Competition
 
    The market for pharmaceutical products is competitive.
    Schering-Plough’s operations may be affected by
    technological advances of competitors, industry consolidation,
    patents granted to competitors, competitive combination
    products, new products of competitors, new information from
    clinical trials of marketed products or post-marketing
    surveillance and generic competition as Schering-Plough’s
    products mature. In addition, patent positions are increasingly
    being challenged by competitors, and the outcome can be highly
    uncertain. An adverse result in a patent dispute can preclude
    commercialization of products or negatively affect sales of
    existing products. The effect on operations of competitive
    factors and patent disputes cannot be predicted.
 
    OUTLOOK
 
    Schering-Plough does not provide numeric guidance. However, the
    following outlook may be helpful to readers in assessing future
    prospects.
 
    See the discussions of matters relating to the
    Merck/Schering-Plough cholesterol joint venture’s ENHANCE
    clinical trial in Part II, Item 1, “Legal
    Proceedings,” “ENHANCE Matter,” and Part I,
    Item 2, “Management’s Discussion and Analysis of
    Financial Condition and Results of Operations,”
    “Executive Overview,” “Cholesterol
    Franchise.” While it is too early to determine the
    long-term impact on Schering-Plough’s business,
    second-quarter and full-year net sales by the
    Merck/Schering-Plough cholesterol joint venture of VYTORIN and
    ZETIA in the U.S. are expected to decline on a
    year-over-year basis. Further, wholesalers, retail chains and
    other trade buyers in the U.S. have changed their buying
    patterns to reduce their inventory levels, and may make further
    changes, that may also impact future sales. Based on the
    expectation for lower sales from the Merck/Schering-Plough
    cholesterol joint venture, Schering-Plough expects that equity
    income will be lower in subsequent quarters of 2008 than it was
    in the first quarter of 2008.
 
    Schering-Plough expects research and development spending to be
    higher in the remaining quarters of 2008 than it was in the
    first quarter of 2008.
 
    The risks set forth in Part II, Item 1A, “Risk
    Factors,” of this
    10-Q could
    cause actual results to differ materially from the expectation
    provided in this section.
 
    CRITICAL
    ACCOUNTING POLICIES AND ESTIMATES
 
    Refer to Item 7, “Management’s Discussion and
    Analysis of Financial Condition and Results of Operations,”
    in Schering-Plough’s 2007
    10-K/A for
    disclosures regarding Schering-Plough’s critical accounting
    policies and estimates.
 
    Rebates,
    Discounts and Returns
 
    Schering-Plough’s rebate accruals for federal and state
    governmental programs, including Medicaid and Medicare
    Part D, at March 31, 2008 and 2007 were
    $127 million and $134 million, respectively.
    Commercial discounts, returns and other rebate accruals at
    March 31, 2008 and 2007 were $426 million and
    $376 million, respectively. These accruals are established
    in the period that the related revenue was recognized, resulting
    in a reduction to sales and the establishment of liabilities,
    which are included in total current liabilities, or in the case
    of returns and other receivable adjustments, an allowance
    provided against accounts receivable.
    
    37
 
    The following summarizes the activity in the accounts related to
    accrued rebates, sales returns and discounts for the three
    months ended March 31, 2008 and 2007:
 
    |  |  |  |  |  |  |  |  |  | 
|  |  | 2008 |  |  | 2007 |  | 
|  |  | (Dollars in millions) |  | 
|  | 
| 
    Accrued rebates/returns/discounts, beginning of period
 |  | $ | 526 |  |  | $ | 486 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Provision for rebates
 |  |  | 188 |  |  |  | 155 |  | 
| 
    Adjustment to prior-year estimates
 |  |  | 1 |  |  |  | (13 | ) | 
| 
    Payments
 |  |  | (158 | ) |  |  | (111 | ) | 
|  |  |  |  |  |  |  |  |  | 
|  |  |  | 31 |  |  |  | 31 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Provision for returns
 |  |  | 45 |  |  |  | 49 |  | 
| 
    Adjustment to prior-year estimates(1)
 |  |  | (12 | ) |  |  | (12 | ) | 
| 
    Returns
 |  |  | (31 | ) |  |  | (29 | ) | 
|  |  |  |  |  |  |  |  |  | 
|  |  |  | 2 |  |  |  | 8 |  | 
|  |  |  |  |  |  |  |  |  | 
| 
    Provision for discounts
 |  |  | 223 |  |  |  | 178 |  | 
| 
    Adjustment to prior-year estimates
 |  |  | (2 | ) |  |  | — |  | 
| 
    Discounts granted
 |  |  | (227 | ) |  |  | (193 | ) | 
|  |  |  |  |  |  |  |  |  | 
|  |  |  | (6 | ) |  |  | (15 | ) | 
|  |  |  |  |  |  |  |  |  | 
| 
    Accrued rebates/returns/discounts, end of period
 |  | $ | 553 |  |  | $ | 510 |  | 
|  |  |  |  |  |  |  |  |  | 
 
    |  |  |  | 
    | (1) |  | For the three months ended March 31, 2008, the adjustment
    to prior-year estimates for returns includes $9 million
    related to the reversal of return reserves recorded as part of
    the purchase accounting for OBS. This reversal was recorded as a
    reduction to goodwill. | 
 
 
    In formulating and recording the above accruals, management
    utilizes assumptions and estimates that include historical
    experience, wholesaler data, the projection of market
    conditions, the estimated lag time between sale and payment of a
    rebate, utilization estimates, and forecasted product demand
    amounts.
 
    As part of its review of these accruals, management performs a
    sensitivity analysis that considers differing assumptions, which
    are most subject to judgment in its rebate accrual calculation.
    Based upon Schering-Plough’s sensitivity analysis,
    reasonably possible changes to assumptions related to rebate
    accruals could favorably or unfavorably impact 2008 net
    sales and income before income taxes in an amount consistent
    with the full year 2007, which was $31 million.
 
    DISCLOSURE
    NOTICE
 
    Cautionary
    Statements Under the Private Securities Litigation Reform Act of
    1995
 
    Management’s Discussion and Analysis of Financial Condition
    and Results of Operations and other sections of this report, as
    well as other written reports and oral statements made from time
    to time by Schering-Plough, may contain forward-looking
    statements within the meaning of the Private Securities
    Litigation Reform Act of 1995. Forward-looking statements do not
    relate strictly to historical or current facts and are based on
    current expectations or forecasts of future events. You can
    identify these forward-looking statements by their use of words
    such as “anticipate,” “believe,”
    “could,” “estimate,” “expect,”
    “forecast,” “project,” “intend,”
    “plan,” “potential,” “will,” and
    similar words and terms. In particular, forward-looking
    statements include statements relating to Schering-Plough’s
    plans; its strategies; timing and level of savings achieved from
    the Productivity Transformation Program; prospective products or
    product approvals; actions to enhance clinical, research and
    development, manufacturing and post-marketing systems; the
    potential of products and trending in therapeutic markets,
    including the cholesterol market; patent and other intellectual
    property protection; future performance or results of current
    and anticipated products; research and
    
    38
 
    development programs and anticipated spending; estimates of
    rebates, discounts and returns; and the outcome of contingencies
    such as litigation and investigations.
 
    Any or all forward-looking statements here or in other
    publications may turn out to be wrong. There are no guarantees
    about Schering-Plough’s financial and operational
    performance or the performance of Schering-Plough’s stock.
    Schering-Plough does not assume the obligation to update any
    forward-looking statement. Many factors could cause actual
    results to differ materially from Schering-Plough’s
    forward-looking statements. These factors include inaccurate
    assumptions and a broad variety of other risks and
    uncertainties, including some that are known and some that are
    not. Although it is not possible to predict or identify all such
    factors, we refer you to Part II, Item 1A, “Risk
    Factors,” of this
    10-Q for
    identification of important factors with respect to risks and
    uncertainties.
 
    |  |  | 
    | Item 3. | Quantitative
    and Qualitative Disclosures about Market Risk | 
 
    Schering-Plough is exposed to market risk primarily from changes
    in foreign currency exchange rates and, to a lesser extent, from
    interest rates and equity prices. The impact of currency is more
    pronounced on products and businesses that are concentrated in
    Europe.
 
    Refer to Item 7, “Management’s Discussion and
    Analysis of Financial Condition and Results of Operations,”
    in Schering-Plough’s 2007
    10-K/A for
    further discussion of market risks.
 
    |  |  | 
    | Item 4. | Controls
    and Procedures | 
 
    Management, including the chief executive officer and the chief
    financial officer, has evaluated Schering-Plough’s
    disclosure controls and procedures as of the end of the
    quarterly period covered by this
    10-Q and has
    concluded that Schering-Plough’s disclosure controls and
    procedures are effective. They also concluded that there were no
    changes in Schering-Plough’s internal control over
    financial reporting that occurred during Schering-Plough’s
    most recent fiscal quarter that have materially affected, or are
    reasonably likely to materially affect, Schering-Plough’s
    internal control over financial reporting.
 
    Schering-Plough is replacing and upgrading a number of
    information systems, and commencing in the first quarter of
    2008, integrating the Organon BioSciences N.V. human and animal
    health businesses. The overall process will be ongoing for
    several years. In connection with these changes, as part of
    Schering-Plough’s management evaluation of both internal
    control over financial reporting and disclosure controls and
    procedures, management has concluded that the new processes are
    at least as effective with respect to those controls as the
    prior processes. An example of a change in process that occurred
    during the first three months of 2008 is the integration of the
    OBS human health U.S. procure-to-pay process into the
    Schering-Plough U.S. procure-to-pay system.
 
    PART II.
    OTHER INFORMATION
 
    |  |  | 
    | Item 1. | Legal
    Proceedings | 
 
    Material pending legal proceedings involving Schering-Plough are
    described in Part I, Item 3, “Legal Proceedings,”
    of the 2007
    10-K/A. The
    following discussion is limited to material developments to
    previously reported proceedings and new material legal
    proceedings, which Schering-Plough, or any of its subsidiaries,
    became a party during the quarter ended March 31, 2008, or
    subsequent thereto, but before the filing of this report. This
    section should be read in conjunction with Part I,
    Item 3, “Legal Proceedings” in the 2007
    10-K/A.
 
    ENHANCE
    Matter
 
    Background.  The Merck/Schering-Plough
    cholesterol joint venture markets ZETIA and VYTORIN
    (a combination of Merck’s Zocor (simvastatin) and
    Schering-Plough’s Zetia (ezetimibe)).
    
    39
 
    The Merck/Schering-Plough cholesterol joint venture’s
    ENHANCE (Effect of Combination Ezetimibe and High-Dose
    Simvastatin vs. Simvastatin Alone on the Atherosclerotic Process
    in Patients with Heterozygous Familial Hypercholesterolemia)
    clinical trial was a surrogate endpoint trial, conducted in
    720 patients with Heterozygous Familial
    Hypercholesterolemia, a rare condition that affects
    approximately 0.2% of the population. The primary endpoint was
    the mean change in the intima-media thickness measured at three
    sites in the carotid arteries (the right and left common
    carotid, internal carotid and carotid bulb) between patients
    treated with ezetimibe/simvastatin 10/80 mg versus patients
    treated with simvastatin 80 mg alone over a two-year
    period. There was no statistically significant difference
    between the treatment groups for the primary endpoint or for
    each of the components of the primary endpoint, including the
    common carotid artery. Key secondary imaging endpoints also
    showed no statistical difference between treatment groups.
 
    Technical difficulties consumed a long time period after the
    last patient was scanned in April 2006 until December 31,
    2007, when data from ultrasound images were first unblinded to
    scientists of the Merck/Schering-Plough cholesterol joint
    venture. After analysis of the results, the summary findings
    were released by the joint venture on January 14, 2008 and
    full results were released later in the first quarter 2008.
    There has been significant media attention to the length of time
    between the last patient having an ultrasound taken for the
    trial through the final analysis and the unblinding of the data,
    and to the trial results. In addition, these issues have been
    raised in private lawsuits against Schering-Plough, as well as
    in investigations that are ongoing. These events impacted sales,
    as discussed in Part I, Item 2,
    “Management’s Discussion and Analysis of Financial
    Condition and Results of Operations.”
 
    Medical experts and health advisory groups have long recognized
    high LDL cholesterol as a significant cardiovascular risk factor
    and recommended increasingly aggressive treatment of high
    cholesterol for certain patients. Lowering LDL cholesterol,
    along with healthy diet and lifestyle changes, remains the
    cornerstone of lipid treatment for patients at risk for heart
    disease.
 
    Clinical studies prior to ENHANCE have demonstrated that VYTORIN
    lowered patients’ LDL cholesterol more than rosuvastatin,
    atorvastatin and simvastatin at the doses studied and was able
    to get more patients to their LDL cholesterol goals (as defined
    by ATP III). The findings from the Merck/Schering-Plough
    cholesterol joint venture’s ENHANCE clinical trial further
    confirmed VYTORIN’s effectiveness, compared to simvastatin,
    at lowering LDL cholesterol as well as triglycerides and
    C-reactive protein (CRP). Specifically, there was a significant
    difference in LDL cholesterol lowering seen between the
    treatment groups — 58% LDL cholesterol lowering at
    24 months on VYTORIN as compared to 41% at 24 months
    on simvastatin alone. VYTORIN is not indicated for the reduction
    of CRP.
 
    The ENHANCE surrogate endpoint study was not powered nor
    designed to assess cardiovascular clinical event outcomes, such
    as the effectiveness of the drugs at lowering the risk of heart
    attack and stroke. The Merck/Schering-Plough cholesterol joint
    venture is currently conducting the IMPROVE-IT trial, a large
    clinical trial comparing VYTORIN (ezetimibe/simvastatin) and
    simvastatin in approximately 18,000 patients. The results
    of the IMPROVE-IT trial will compare the effectiveness of
    VYTORIN to simvastatin alone in reducing heart attacks
    and/or
    strokes.
 
    Schering-Plough’s stock price declined significantly in
    early 2008, from $26.64 (closing price) on December 31,
    2007 to a 2008 low of $13.86 (closing price) on April 2,
    2008 to $18.75 (closing price) on May 5, 2008, the day
    before this
    10-Q was
    filed.
 
    Investigation and Inquiries.  Through the date
    of filing this
    10-Q,
    Schering-Plough, the joint venture
    and/or its
    joint venture partner, Merck, have received a number of
    governmental inquiries and have been the subject of a number of
    investigations. These include several letters from Congress,
    including the House Committee on Energy and Commerce, the House
    Subcommittee on Oversight and Investigations, and the ranking
    minority member of the Senate Finance Committee, collectively
    seeking a combination of witness interviews, documents and
    information on a variety of issues related to the
    Merck/Schering-Plough cholesterol joint venture’s ENHANCE
    clinical trial, the companies’ sale and promotion of
    VYTORIN, as well as sales of stock by the companies’
    corporate officers (including one executive of Schering-Plough
    who was named in one of the letters, Carrie Cox) since April
    2006. These also include several subpoenas from state officials,
    including State Attorneys General, and requests for information
    from U.S. Attorneys seeking similar information and
    documents.
    
    40
 
    Litigation.  In addition, since mid-January
    2008, Schering-Plough has become aware of or been served with
    litigation, including civil class action lawsuits alleging
    common law and state consumer fraud claims in connection with
    Schering-Plough’s sale and promotion of the
    Merck/Schering-Plough joint-venture products’ VYTORIN and
    ZETIA; several putative shareholder securities class action
    lawsuits (where several officers are also named defendants)
    alleging false and misleading statements and omissions by
    Schering-Plough and its representatives related to the timing of
    disclosures concerning the ENHANCE results, allegedly in
    violation of Sections 10(b) and 20(a) of the Securities
    Exchange Act of 1934; a putative shareholder securities class
    action lawsuit (where several officers and directors are also
    named), alleging material misstatements and omissions related to
    the ENHANCE results in the offering documents in connection with
    Schering-Plough’s 2007 securities offerings, allegedly in
    violation of the Securities Act of 1933, including
    Section 11; a putative class action suit alleging that
    Schering-Plough
    and certain officers breached their fiduciary duties under ERISA
    and seeking damages in the amount of losses allegedly suffered
    by the Plans; a Shareholder Derivative Action alleging that the
    Board of Directors breached its fiduciary obligations relating
    to the timing of the release of the ENHANCE results; and a
    letter on behalf of a single shareholder requesting that the
    Board of Directors investigate the allegations in the litigation
    described above and, if warranted, bring any appropriate legal
    action on behalf of Schering-Plough.
 
    Schering-Plough is cooperating fully with the various
    investigations and responding to the requests for information,
    and Schering-Plough intends to vigorously defend the lawsuits
    that have been filed relating to the ENHANCE study.
 
    Patent
    Challenges Under the Hatch-Waxman Act
 
    Although Schering-Plough does not currently believe any pending
    Paragraph IV certification proceeding under the
    Hatch-Waxman Act is material, because there is frequently media
    and investor interest in such proceedings, Schering-Plough is
    listing the pending proceedings each quarter. Currently, the
    following are pending:
 
    |  |  |  | 
    |  | • | in July, 2007, Schering-Plough and its licensor, Cancer Research
    Technologies, Limited, filed a patent infringement action
    against companies seeking approval of a generic version of
    certain strengths of TEMODAR capsules; | 
|  | 
    |  | • | in March 2007, Schering-Plough and an entity jointly owned with
    Merck filed a patent infringement action against companies
    seeking approval of a generic version of ZETIA; and | 
|  | 
    |  | • | in September 2006 and dates thereafter, Schering-Plough filed
    patent infringement actions against companies seeking approval
    of generic versions of CLARINEX Tablets, CLARINEX Reditabs,
    CLARINEX D24, and CLARINEX D12. | 
    
    41
 
 
 
    Schering-Plough’s future operating results and cash flows
    may differ materially from the results described in this
    10-Q due to
    risks and uncertainties related to Schering-Plough’s
    business, including those discussed below. In addition, these
    factors represent risks and uncertainties that could cause
    actual results to differ materially from those implied by
    forward-looking statements contained in this report.
 
    Key
    Schering-Plough products generate a significant amount of
    Schering-Plough’s profits and cash flows, and any events
    that adversely affect the markets for its leading products could
    have a material and negative impact on results of operations and
    cash flows.
 
    Schering-Plough’s ability to generate profits and operating
    cash flow depends largely upon the continued profitability of
    Schering-Plough’s cholesterol franchise, consisting of
    VYTORIN and ZETIA. In addition, other key products such as
    REMICADE, NASONEX, TEMODAR, PEGINTRON, CLARINEX, FOLLISTIM,
    AVELOX, CLARITIN and NUVARING account for a material portion of
    revenues. As a result of Schering-Plough’s dependence on
    key products, any events that adversely affect the markets for
    these products could have a significant impact on results of
    operations. These events include loss of patent protection,
    increased costs associated with manufacturing, generic or OTC
    availability of Schering-Plough’s product or a competitive
    product, the discovery of previously unknown side effects,
    increased competition from the introduction of new, more
    effective treatments and discontinuation or removal from the
    market of the product for any reason.
 
    For example, the profitability of Schering-Plough’s
    cholesterol franchise may be adversely affected by competition
    from multiple generic cholesterol products. The FDA has held a
    public meeting to solicit comment on making certain prescription
    drugs available “behind-the-counter” without a
    prescription and continues to study this scenario. Although the
    FDA did not indicate what drugs might be included in this
    category, if the FDA approved behind-the-counter sales of
    products that compete with products of Schering-Plough or the
    Merck/Schering-Plough cholesterol joint venture, such
    competition could have an adverse result on sales and
    profitability.
 
    There
    is a high risk that funds invested in research will not generate
    financial returns because the development of novel drugs
    requires significant expenditures with a low probability of
    success.
 
    There is a high rate of failure inherent in the research to
    develop new drugs to treat diseases. As a result, there is a
    high risk that funds invested in research programs will not
    generate financial returns. This risk profile is compounded by
    the fact that this research has a long investment cycle. To
    bring a pharmaceutical compound from the discovery phase to
    market may take a decade or more and failure can occur at any
    point in the process, including later in the process after
    significant funds have been invested.
 
    Schering-Plough’s
    success is dependent on the successful development and marketing
    of new products, which are subject to substantial
    risks.
 
    Products that appear promising in development may fail to reach
    market for numerous reasons, including the following:
 
    |  |  |  | 
    |  | • | findings of ineffectiveness, superior safety or efficacy of
    competing products, or harmful side effects in clinical or
    pre-clinical testing; | 
|  | 
    |  | • | failure to receive the necessary regulatory approvals, including
    delays in the approval of new products and new indications; | 
|  | 
    |  | • | lack of economic feasibility due to manufacturing costs or other
    factors; and | 
|  | 
    |  | • | preclusion from commercialization by the proprietary rights of
    others. | 
    
    42
 
 
    Intellectual
    property protection for innovation is an important contributor
    to Schering-Plough’s profitability. Generic forms of
    Schering-Plough’s products may be introduced to the market
    as a result of the expiration of patents covering
    Schering-Plough’s products, a successful challenge to
    Schering-Plough’s patents, or the at-risk launch of a
    generic version of a Schering-Plough product, which may have a
    material and negative effect on results of
    operations.
 
    Intellectual property protection is critical to
    Schering-Plough’s ability to successfully commercialize its
    products. U.S. patents relating to Schering-Plough’s
    significant products are of material importance to
    Schering-Plough. Upon the expiration or the successful challenge
    of Schering-Plough’s patents covering a product,
    competitors may introduce lower-priced generic or similar
    branded versions of that product, which may include
    Schering-Plough’s well-established products.
 
    A generic manufacturer may file an Abbreviated New Drug
    Application seeking approval after the expiration of the
    applicable data exclusivity and alleging that one or more of the
    patents listed in the innovator’s New Drug Application are
    invalid, not infringed or unenforceable. This allegation is
    commonly known as a Paragraph IV certification. The
    innovator then has the ability to file suit against the generic
    manufacturer to enforce its patents. Generic manufacturers have
    used Paragraph IV certifications extensively to challenge
    patents on a wide array of innovative pharmaceuticals, and it is
    anticipated that this trend will continue. In recent years, some
    generic manufacturers have launched generic versions of products
    before the ultimate resolution of patent litigation (commonly
    known as “at-risk” product launches). Generic entry
    may result in the loss of a significant portion of sales or
    downward pressures on the prices at which Schering-Plough offers
    formerly patented products. Please refer to “Legal
    Proceedings” in Schering-Plough’s 2007
    10-K/A and
    subsequent
    10-Qs for
    descriptions of pending intellectual property litigation.
 
    Additionally, certain foreign governments have indicated that
    compulsory licenses to patents may be granted in the case of
    national emergencies, which could diminish or eliminate sales
    and profits from those regions and negatively affect
    Schering-Plough’s results of operations. Further, recent
    court decisions relating to other companies’ patents in the
    U.S., potential U.S. legislation relating to patent reform,
    as well as regulatory initiatives may result in further erosion
    of intellectual property protection.
 
    Patent
    disputes can be costly to prosecute and defend and adverse
    judgments could result in damage awards, increased royalties and
    other similar payments and decreased sales.
 
    Patent positions can be highly uncertain and patent disputes in
    the pharmaceutical industry are not unusual. An adverse result
    in a patent dispute involving Schering-Plough’s patents, or
    the patents of its collaborators, may lead to a determination by
    a court that the patent is not infringed, invalid,
    and/or
    unenforceable. Such an adverse determination could lead to a
    loss of market exclusivity. An adverse result in a patent
    dispute involving patents held by a third party may lead to a
    determination by a court that the patent is infringed, valid,
    and enforceable. Such an adverse determination may preclude the
    commercialization of Schering-Plough’s products through
    injunctive relief,
    and/or may
    lead to significant financial damages for past and ongoing
    infringement. Due to the uncertainty surrounding patent
    litigation, parties may settle patent disputes by obtaining a
    license under mutually agreeable terms in order to decrease risk
    of an interruption in manufacturing
    and/or
    marketing of its products.
 
    The potential for litigation regarding Schering-Plough’s
    intellectual property rights always exists and may be initiated
    by third parties attempting to abridge Schering-Plough’s
    rights. Even if Schering-Plough is ultimately successful in a
    particular dispute, Schering-Plough may incur substantial costs
    in defending its patents and other intellectual property rights.
    See “Patent Challenges Under the Hatch-Waxman Act” in
    Part II, Item 1, “Legal Proceedings” for a
    list of current Paragraph IV certifications for
    Schering-Plough products.
 
    Multi-jurisdictional
    regulations, including those establishing Schering-Plough’s
    ability to price products, may negatively affect
    Schering-Plough’s sales and profit margins.
 
    Schering-Plough faces increased pricing pressure globally from
    managed care organizations, institutions and government agencies
    and programs that could negatively affect Schering-Plough’s
    sales and profit margins. For example, in the U.S., the Medicare
    Prescription Drug Improvement and Modernization Act of 2003
    
    43
 
    contains a prescription drug benefit for individuals who are
    eligible for Medicare. The prescription drug benefit became
    effective on January 1, 2006 and has resulted in increased
    use of generics and increased purchasing power of those
    negotiating on behalf of Medicare recipients.
 
    In addition to legislation concerning price controls, other
    trends could adversely affect Schering-Plough’s sales and
    profit margins. These trends include legislative or regulatory
    action relating to pharmaceutical pricing and reimbursement,
    health care reform initiatives and drug importation legislation
    and involuntary approval of medicines for OTC use. These trends
    also include non-governmental initiatives and practices such as
    consolidation among customers, managed care practices and health
    care costs containment. Increasingly, market approval,
    reimbursement of products, prescribers’ practices and
    policies of third-party payors may be influenced by health
    technology assessments by the National Institute for Health and
    Clinical Excellence in the UK and other such organizations.
 
    In the U.S., as a result of the government’s efforts to
    reduce health care expenditures and other payors’ efforts
    to reduce health care costs, Schering-Plough faces increased
    pricing pressure as payors continue to seek price discounts with
    respect to Schering-Plough’s products.
 
    In other countries, many governmental agencies strictly control,
    directly or indirectly, the prices at which pharmaceutical
    products are sold. In these markets, cost control methods
    including restrictions on physician prescription levels and
    patient reimbursements; emphasis on greater use of generic
    drugs; and across-the-board price cuts may decrease revenues
    internationally.
 
    Through
    the acquisition of OBS, Schering-Plough acquired marketed
    products and pipeline projects in therapeutic areas not
    currently covered by Schering-Plough’s existing marketed
    products portfolio and pipeline projects, including women’s
    health and fertility, anesthesia, and neuroscience, each of
    which carry unique risks and uncertainties which could have a
    negative impact on future results of operations.
 
    With its acquisition of OBS, Schering-Plough acquired products
    in additional therapeutic areas. Each therapeutic area presents
    a different risk profile, including different benefits and
    safety issues that must be balanced by Schering-Plough and the
    regulators as various research and development and marketing
    decisions are made; unique product liability risks; different
    patient and prescriber priorities; and different societal
    pressures. While adding new therapeutic areas may strengthen the
    business by increasing sales and profits; making the combined
    company more relevant to patients and prescribers; and
    diversifying enterprise risk across more areas, such positives
    may not outweigh the additional risk in a particular therapeutic
    area or could result in unanticipated costs that could be
    material.
 
    Market
    forces continue to evolve and can impact Schering-Plough’s
    ability to sell products or the price Schering-Plough can charge
    for products.
 
    A number of intermediaries are involved between drug
    manufacturers, such as Schering-Plough, and patients who use the
    drugs. These intermediaries impact the patient’s ability,
    and their prescribers’ ability, to choose and pay for a
    particular drug, which may adversely affect sales of a
    particular Schering-Plough drug. These intermediaries include
    health care providers, such as hospitals and clinics; payors and
    their representatives, such as employers, insurers, managed care
    organizations and governments; and others in the supply chain,
    such as pharmacists and wholesalers. Examples include: payors
    that require a patient to first fail on a generic drug before
    reimbursing for a more effective, branded product that is more
    expensive; hospitals that stock and administer only a generic
    product to in-patients; managed care organizations that may
    penalize doctors who prescribe outside approved formularies
    which may not include branded products when a generic is
    available; and pharmacists who receive larger revenues when they
    dispense a generic drug over a branded drug. Further, the
    intermediaries are not required to routinely provide transparent
    data to patients comparing the effectiveness of generic and
    branded products or to disclose their own economic benefits that
    are tied to steering patients toward, or requiring patients to
    use, generic products rather than branded products.
    
    44
 
    Government
    investigations involving Schering-Plough could lead to the
    commencement of civil and/or criminal proceedings involving the
    imposition of substantial fines, penalties and injunctive or
    administrative remedies, including exclusion from government
    reimbursement programs, which could give rise to other
    investigations or litigation by government entities or private
    parties.
 
    Schering-Plough cannot predict whether future or pending
    investigations to which it may become subject would lead to a
    judgment or settlement involving a significant monetary award or
    restrictions on its operations.
 
    The pricing, sales and marketing programs and arrangements and
    related business practices of Schering-Plough and other
    participants in the health care industry are under increasing
    scrutiny from federal and state regulatory, investigative,
    prosecutorial and administrative entities. These entities
    include the Department of Justice and its
    U.S. Attorney’s Offices, the Office of Inspector
    General of the Department of Health and Human Services, the FDA,
    the Federal Trade Commission and various state Attorneys General
    offices. Many of the health care laws under which certain of
    these governmental entities operate, including the federal and
    state anti-kickback statutes and statutory and common law false
    claims laws, have been construed broadly by the courts and
    permit the government entities to exercise significant
    discretion. In the event that any of those governmental entities
    believes that wrongdoing has occurred, one or more of them could
    institute civil or criminal proceedings which, if resolved
    unfavorably, could subject Schering-Plough to substantial fines,
    penalties and injunctive or administrative remedies, including
    exclusion from government reimbursement programs. In addition,
    an adverse outcome to a government investigation could prompt
    other government entities to commence investigations of
    Schering-Plough or cause those entities or private parties to
    bring civil claims against it. Schering-Plough also cannot
    predict whether any investigations will affect its marketing
    practices or sales. Any such result could have a material
    adverse impact on Schering-Plough’s results of operations,
    cash flows, financial condition, or its business.
 
    A number of governmental entities in the U.S. have made
    inquiries or initiated investigations into the timing and
    disclosures relating to the ENHANCE clinical trial, as well as
    the timing of certain stock sales by one executive officer,
    Carrie Cox. These include several letters from Congress,
    investigations by state Attorneys General offices, and requests
    for information from U.S. Attorneys’ Offices.
 
    Regardless of the merits or outcomes of any investigation,
    government investigations are costly, divert management’s
    attention from Schering-Plough’s business and may result in
    substantial damage to Schering-Plough’s reputation.
 
    There
    are other legal matters in which adverse outcomes could
    negatively affect Schering-Plough’s business.
 
    Unfavorable outcomes in other pending litigation matters, or in
    future litigation, including litigation concerning product
    pricing, securities law violations, product liability claims,
    ERISA matters, patent and intellectual property disputes, and
    antitrust matters could preclude the commercialization of
    products, negatively affect the profitability of existing
    products and could subject Schering-Plough to substantial fines,
    penalties and injunctive or administrative remedies, including
    exclusion from government reimbursement programs. Any such
    result could materially and adversely affect
    Schering-Plough’s results of operations, cash flows,
    financial condition, or its business.
 
    Please refer to “Legal Proceedings” in Item 3 in
    Schering-Plough’s 2007
    10-K/A and
    Part II, Item 1, “Legal Proceedings,” in
    this 10-Q
    for descriptions of significant pending litigation.
 
    Issues
    concerning the Merck/Schering-Plough Cholesterol Joint
    Venture’s ENHANCE clinical trial could have a material
    adverse effect on the joint venture’s sales of VYTORIN and
    ZETIA, which in turn could have a material adverse impact on
    Schering-Plough’s financial condition.
 
    See “ENHANCE Matter” in Part II, Item 1,
    “Legal Proceedings” in this
    10-Q for
    background information about the Merck/Schering-Plough
    cholesterol join venture’s ENHANCE clinical trial and
    related matters.
    
    45
 
    These issues concerning the Merck/Schering-Plough cholesterol
    joint venture’s ENHANCE clinical trial could have a
    material adverse effect on the Merck/Schering-Plough cholesterol
    joint venture’s sales of VYTORIN and ZETIA. There
    was significant negative media surrounding the release of the
    ENHANCE results. In the first quarter of 2008, sales of VYTORIN
    and ZETIA in the U.S. decreased by 5 percent compared
    to the first quarter of 2007. If sales of these products
    continue to trend down further or remain at current levels for a
    prolonged period, Schering-Plough’s results of operations,
    cash flow, financial position, business and prospects could also
    be materially adversely affected. In addition, current or future
    investigations, analysis of the ENHANCE data by various agencies
    including the FDA, litigation concerning the sale and promotion
    of these products, or the securities and other class action
    litigation relating to such matters could, if resolved
    unfavorably to Schering-Plough or the joint venture, have a
    material adverse effect on Schering-Plough’s results of
    operations, cash flow and financial position.
 
    Schering-Plough
    and third parties acting on its behalf are subject to
    governmental regulations, and the failure to comply with, as
    well as the costs of compliance with, these regulations may
    adversely affect Schering-Plough’s results of operations,
    cash flow and financial position.
 
    Manufacturing and research practices of Schering-Plough and
    third parties acting on its behalf must meet stringent
    regulatory standards and are subject to regular inspections. The
    cost of regulatory compliance, including that associated with
    compliance failures, can materially affect
    Schering-Plough’s results of operations, cash flow and
    financial position. Failure to comply with regulations, which
    include pharmacovigilance reporting requirements and standards
    relating to clinical, laboratory and manufacturing practices,
    can result in suspension or termination of clinical studies,
    delays or failure in obtaining the approval of drugs, seizure or
    recalls of drugs, suspension or revocation of the authority
    necessary for the production and sale of drugs, withdrawal of
    approval, fines and other civil or criminal sanctions.
 
    Schering-Plough also is subject to other regulations, including
    environmental, health and safety, and labor regulations.
 
    Developments
    following regulatory approval may adversely affect sales of
    Schering-Plough’s products.
 
    Even after a product reaches market, certain developments
    following regulatory approval, including results in
    post-marketing Phase IV trials, may decrease demand for
    Schering-Plough’s products, including the following:
 
    |  |  |  | 
    |  | • | the re-review of products that are already marketed; | 
|  | 
    |  | • | new scientific information and evolution of scientific theories; | 
|  | 
    |  | • | the recall or loss of marketing approval of products that are
    already marketed; | 
|  | 
    |  | • | changing government standards or public expectations regarding
    safety, efficacy or labeling changes; and | 
|  | 
    |  | • | greater scrutiny in advertising and promotion. | 
 
    In the past several years, clinical trials and post-marketing
    surveillance of certain marketed drugs of competitors within the
    industry have raised safety concerns that have led to recalls,
    withdrawals or adverse labeling of marketed products. These
    situations also have raised concerns among some prescribers and
    patients relating to the safety or efficacy of pharmaceutical
    products in general that have negatively affected the sales of
    such products. In addition, increased scrutiny of the outcomes
    of clinical trials have led to increased volatility in market
    reaction.
 
    In addition, following the wake of product withdrawals of other
    companies and other significant safety issues, health
    authorities such as the FDA, the European Medicines Agency and
    the Pharmaceuticals and Medicines Device Agency have increased
    their focus on safety when assessing the benefit/risk balance of
    drugs. Some health authorities appear to have become more
    cautious when making decisions about approvability of new
    products or indications and are re-reviewing select products
    that are already marketed,
    
    46
 
    adding further to the uncertainties in the regulatory processes.
    There is also greater regulatory scrutiny, especially in the
    U.S., on advertising and promotion and in particular,
    direct-to-consumer advertising.
 
    If previously unknown side effects are discovered or if there is
    an increase in negative publicity regarding known side effects
    of any of Schering-Plough’s products, it could
    significantly reduce demand for the product or may require
    Schering-Plough to take actions that could negatively affect
    sales, including removing the product from the market,
    restricting its distribution or applying for labeling changes.
    Further, in the current environment in which all pharmaceutical
    companies operate, Schering-Plough is at risk for product
    liability claims for its products.
 
    New
    products and technological advances developed by
    Schering-Plough’s competitors may negatively affect
    sales.
 
    Schering-Plough operates in a highly competitive industry.
    Schering-Plough competes with a large number of multinational
    pharmaceutical companies, biotechnology companies and generic
    pharmaceutical companies. Many of Schering-Plough’s
    competitors have been conducting research and development in
    areas served both by Schering-Plough’s current products and
    by those products Schering-Plough is in the process of
    developing. Competitive developments that may impact
    Schering-Plough include technological advances by, patents
    granted to, and new products developed by competitors or new and
    existing generic, prescription
    and/or OTC
    products that compete with products of Schering-Plough or the
    Merck/Schering-Plough cholesterol joint venture. In addition, it
    is possible that doctors, patients and providers may favor those
    products offered by competitors due to safety, efficacy, pricing
    or reimbursement characteristics, and as a result
    Schering-Plough will be unable to maintain its sales for such
    products.
 
    Competition
    from third parties may make it difficult for Schering-Plough to
    acquire or license new products or product candidates
    (regardless of stage of development) or to enter into such
    transactions on terms that permit Schering-Plough to generate a
    positive financial impact.
 
    Schering-Plough depends on acquisition and in-licensing
    arrangements as a source for new products. Opportunities for
    obtaining or licensing new products are limited, however, and
    securing rights to them typically requires substantial amounts
    of funding or substantial resource commitments. Schering-Plough
    competes for these opportunities against many other companies
    and third parties that have greater financial resources and
    greater ability to make other resource commitments.
    Schering-Plough may not be able to acquire or license new
    products, which could adversely impact Schering-Plough and its
    prospects. Schering-Plough may also have difficulty acquiring or
    licensing new products on acceptable terms. To secure rights to
    new products, Schering-Plough may have to make substantial
    financial or other resource commitments that could limit its
    ability to produce a positive financial impact from such
    transactions.
 
    Schering-Plough
    relies on third-party relationships for its key products, and
    the conduct and changing circumstances of such third parties may
    adversely impact the business.
 
    Schering-Plough has several relationships with third parties on
    which Schering-Plough depends for many of its key products. Very
    often these third parties compete with Schering-Plough or have
    interests that are not aligned with the interests of
    Schering-Plough. Notwithstanding any contracts Schering-Plough
    has with these third parties, Schering-Plough may not be able to
    control or influence the conduct of these parties, or the
    circumstances that affect them, either of which could adversely
    impact Schering-Plough.
 
    The relationships are long-standing and, as the third
    party’s work and Schering-Plough’s work evolves,
    priorities and alignments also change. At times new issues
    develop that were not anticipated at the time contracts were
    negotiated. These new issues, and related uncertainties in the
    contracts, also can adversely impact Schering-Plough.
    
    47
 
    Schering-Plough’s
    global operations expose Schering-Plough to additional risks,
    and any adverse event could have a material negative impact on
    results of operations.
 
    A majority of Schering-Plough’s operations are outside the
    U.S. With the acquisition of OBS in late 2007,
    Schering-Plough’s global operations in Human Prescription
    Pharmaceuticals and Animal Health increased. Acquisitions, such
    as the recently completed purchase of OBS, further expanded the
    size, scale and scope of its global operations. Risks inherent
    in conducting a global business include:
 
    |  |  |  | 
    |  | • | changes in medical reimbursement policies and programs and
    pricing restrictions in key markets; | 
|  | 
    |  | • | multiple regulatory requirements that could restrict
    Schering-Plough’s ability to manufacture and sell its
    products in key markets; | 
|  | 
    |  | • | trade protection measures and import or export licensing
    requirements; | 
|  | 
    |  | • | diminished protection of intellectual property in some
    countries; and | 
|  | 
    |  | • | possible nationalization and expropriation. | 
 
    In addition, there may be changes to Schering-Plough’s
    business and political position if there is instability,
    disruption or destruction in a significant geographic region,
    regardless of cause, including war, terrorism, riot, civil
    insurrection or social unrest; and natural or man-made
    disasters, including famine, flood, fire, earthquake, storm or
    disease.
 
    The
    integration of the businesses of Schering-Plough and OBS to
    create a combined company is a complex process and may be
    subject to unforeseen developments, which could impact
    anticipated cost savings from synergies, expected accretion to
    earnings and results of future operations.
 
    As the two companies are combined, the workforces of
    Schering-Plough and OBS will continue to face uncertainties
    until the completion of the integration phase. Although
    substantial efforts are being made to complete the integration
    phase as quickly as possible, it is difficult to predict how
    long the integration phase will last.
 
    The workforces of both companies are learning to use new
    processes as work is integrated and streamlined. Further, for
    those employees of the new combined company who have not in the
    past worked for a
    U.S.-based
    global company, the applicable regulatory requirements are
    different in a number of respects. While substantial efforts are
    being made to facilitate smooth execution of integration
    including thorough training and transparent and motivational
    employee communications — there may be an increased
    risk of slower execution of various work processes, repeated
    execution to achieve quality standards and reputational harm in
    the event of a compliance failure with new and complex
    regulatory requirements, even if such a failure were
    inadvertent. Any such events could have an adverse impact on
    anticipated cost savings from synergies, anticipated accretion
    to earnings from the transaction and the results of future
    operations.
 
    The
    acquisition of OBS expanded Schering-Plough’s animal health
    business worldwide, which increases the risk that negative
    events in the animal health industry could have a negative
    impact on future results of operations.
 
    Through the acquisition of OBS’ animal health businesses,
    Schering-Plough’s global animal health business is now a
    more significant business segment. The combined company’s
    future sales of key animal health products could be adversely
    impacted by a number of risk factors including certain that are
    specific to the animal health business. For example, the
    outbreak of disease carried by animals, such as Bovine
    Spongiform Encephalopathy (“BSE”) or mad cow disease,
    could lead to their widespread death and precautionary
    destruction as well as the reduced consumption and demand for
    animals, which could adversely impact Schering-Plough’s
    results of operations. Also, the outbreak of any highly
    contagious diseases near Schering-Plough’s main production
    sites could require Schering-Plough to immediately halt
    production of vaccines at such sites or force Schering-Plough to
    incur substantial expenses in procuring raw materials or
    vaccines elsewhere. As the animal health segment of
    Schering-Plough’s business becomes more significant, the
    impact of any such events on future results of operations would
    also become more significant.
    
    48
 
    The
    acquisition of OBS increased Schering-Plough’s biologics
    human and animal health product offerings, including animal
    health vaccines. Biologics carry unique risks and uncertainties,
    which could have a negative impact on future results of
    operations.
 
    The successful development, testing, manufacturing and
    commercialization of biologics, particularly human and animal
    health vaccines, is a long, expensive and uncertain process.
    There are unique risks and uncertainties with biologics,
    including:
 
    |  |  |  | 
    |  | • | There may be limited access to and supply of normal and diseased
    tissue samples, cell lines, pathogens, bacteria, viral strains
    and other biological materials. In addition, government
    regulations in multiple jurisdictions such as the U.S. and
    European states within the EU, could result in restricted access
    to, or transport or use of, such materials. If Schering-Plough
    loses access to sufficient sources of such materials, or if
    tighter restrictions are imposed on the use of such materials,
    Schering-Plough may not be able to conduct research activities
    as planned and may incur additional development costs. | 
|  | 
    |  | • | The development, manufacturing and marketing of biologics are
    subject to regulation by the FDA, the European Medicines Agency
    and other regulatory bodies. These regulations are often more
    complex and extensive than the regulations applicable to other
    pharmaceutical products. For example, in the U.S., a Biologics
    License Application, including both preclinical and clinical
    trial data and extensive data regarding the manufacturing
    procedures, is required for human vaccine candidates and FDA
    approval for the release of each manufactured lot. | 
|  | 
    |  | • | Manufacturing biologics, especially in large quantities, is
    often complex and may require the use of innovative technologies
    to handle living micro-organisms. Each lot of an approved
    biologic must undergo thorough testing for identity, strength,
    quality, purity and potency. Manufacturing biologics requires
    facilities specifically designed for and validated for this
    purpose, and sophisticated quality assurance and quality control
    procedures are necessary. Slight deviations anywhere in the
    manufacturing process, including filling, labeling, packaging,
    storage and shipping and quality control and testing, may result
    in lot failures, product recalls or spoilage. When changes are
    made to the manufacturing process, Schering-Plough may be
    required to provide pre-clinical and clinical data showing the
    comparable identity, strength, quality, purity or potency of the
    products before and after such changes. | 
|  | 
    |  | • | Biologics are frequently costly to manufacture because
    production ingredients are derived from living animal or plant
    material, and most biologics cannot be made synthetically. In
    particular, keeping up with the demand for vaccines may be
    difficult due to the complexity of producing vaccines. | 
|  | 
    |  | • | The use of biologically derived ingredients can lead to
    allegations of harm, including infections or allergic reactions,
    or closure of product facilities due to possible contamination.
    Any of these events could result in substantial costs. | 
|  | 
    |  | • | There currently is no process in the U.S. for the
    submission or approval of generic biologics based upon
    abbreviated data packages or a showing of sameness to another
    approved biologic, but there is public dialogue at the FDA and
    in Congress regarding the scientific and statutory basis upon
    which such products, known as biosimilars or follow-on
    biologics, could be approved and marketed in the
    U.S. Schering-Plough cannot be certain when Congress will
    create a statutory pathway for the approval of biosimilars, and
    Schering-Plough cannot predict what impact, if any, the approval
    of biosimilars would have on the sales of Schering-Plough
    products in the U.S. In Europe, however, the EMEA has
    issued guidelines for approving biological products through an
    abbreviated pathway, and biosimilars have been approved in
    Europe. If a biosimilar version of one of Schering-Plough’s
    products were approved in Europe, it could have a negative
    effect on sales of the product. | 
 
    Schering-Plough
    is exposed to market risk from fluctuations in currency exchange
    rates and interest rates.
 
    Schering-Plough operates in multiple jurisdictions and, as such,
    virtually all sales are denominated in currencies of the local
    jurisdiction. Additionally, Schering-Plough has entered and will
    enter into acquisition, licensing, borrowings or other financial
    transactions that may give rise to currency and interest rate
    exposure.
    
    49
 
    Since Schering-Plough cannot, with certainty, foresee and
    mitigate against such adverse fluctuations, fluctuations in
    currency exchange rates and interest rates could negatively
    affect Schering-Plough’s results of operations
    and/or cash
    flows.
 
    In order to mitigate against the adverse impact of these market
    fluctuations, Schering-Plough will from time to time enter into
    hedging agreements. While hedging agreements, such as currency
    options and interest rate swaps, limit some of the exposure to
    exchange rate and interest rate fluctuations, such attempts to
    mitigate these risks are costly and not always successful.
 
    Insurance
    coverage for product liability may be limited, cost prohibitive
    or unavailable.
 
    Schering-Plough maintains insurance coverage with such
    deductibles and self-insurance to reflect market conditions
    (including cost and availability) existing at the time it is
    written, and the relationship of insurance coverage to
    self-insurance varies accordingly. For certain products,
    third-party insurance may be cost prohibitive, available on
    limited terms or unavailable.
 
    Schering-Plough
    is subject to evolving and complex tax laws, which may result in
    additional liabilities that may affect results of
    operations.
 
    Schering-Plough is subject to evolving and complex tax laws in
    the jurisdictions in which it operates. Significant judgment is
    required for determining Schering-Plough’s tax liabilities,
    and Schering-Plough’s tax returns are periodically examined
    by various tax authorities. Schering-Plough believes that its
    accrual for tax contingencies is adequate for all open years
    based on past experience, interpretations of tax law, and
    judgments about potential actions by tax authorities; however,
    due to the complexity of tax contingencies, the ultimate
    resolution of any tax matters may result in payments greater or
    less than amounts accrued.
 
    In addition, Schering-Plough may be impacted by changes in tax
    laws including tax rate changes, changes to the laws related to
    the remittance of foreign earnings, new tax laws and revised tax
    law interpretations in domestic and foreign jurisdictions.
 
    |  |  | 
    | Item 2. | Unregistered
    Sales of Equity Securities and Use of Proceeds | 
 
    This table provides information with respect to purchases by
    Schering-Plough of its common shares during the first quarter of
    2008.
 
    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  | Total Number of 
 |  |  | Maximum Number 
 |  | 
|  |  |  |  |  |  |  |  | Shares Purchased as 
 |  |  | of Shares that May 
 |  | 
|  |  |  |  |  | Average 
 |  |  | Part of Publicly 
 |  |  | Yet Be Purchased 
 |  | 
|  |  | Total Number of 
 |  |  | Price Paid 
 |  |  | Announced Plans or 
 |  |  | Under the Plans or 
 |  | 
| 
    Period
 |  | Shares Purchased(1) |  |  | per Share |  |  | Programs |  |  | Programs |  | 
|  | 
| 
    January 1, 2008 through January 31, 2008
 |  |  | 2,607 |  |  | $ | 24.67 |  |  |  | N/A |  |  |  | N/A |  | 
| 
    February 1, 2008 through February 28, 2008
 |  |  | 2,531 |  |  | $ | 21.91 |  |  |  | N/A |  |  |  | N/A |  | 
| 
    March 1, 2008 through March 31, 2008
 |  |  | 4,287 |  |  | $ | 19.84 |  |  |  | N/A |  |  |  | N/A |  | 
| 
    Total January 1, 2008 through March 31, 2008
 |  |  | 9,425 |  |  | $ | 21.73 |  |  |  | N/A |  |  |  | N/A |  | 
 
    |  |  |  | 
    | (1) |  | All of the shares included in the table above were repurchased
    pursuant to Schering-Plough’s stock incentive program and
    represent shares delivered to Schering-Plough by option holders
    for payment of the exercise price and tax withholding
    obligations in connection with stock options and stock awards. | 
    
    50
 
 
 
    |  |  |  |  |  |  |  | 
| Exhibit 
 |  |  |  |  | 
| 
    Number
 |  | 
    Description
 |  | 
    Location
 | 
|  | 
|  | 3(b) |  |  | Amended and Restated By-laws |  | Incorporated by reference to Exhibit 3.2 to Schering-Plough’s 8-K filed
 on March 5, 2008
 | 
|  | 12 |  |  | Computation of Ratio of Earnings to Fixed Charges |  | Attached | 
|  | 15 |  |  | Awareness letter |  | Attached | 
|  | 31 | .1 |  | Sarbanes-Oxley Act of 2002, Section 302 Certification for
    Chairman of the Board and Chief Executive Officer. |  | Attached | 
|  | 31 | .2 |  | Sarbanes-Oxley Act of 2002, Section 302 Certification for
    Executive Vice President and Chief Financial Officer. |  | Attached | 
|  | 32 | .1 |  | Sarbanes-Oxley Act of 2002, Section 906 Certification for
    Chairman of the Board and Chief Executive Officer. |  | Attached | 
|  | 32 | .2 |  | Sarbanes-Oxley Act of 2002, Section 906 Certification for
    Executive Vice President and Chief Financial Officer. |  | Attached | 
    
    51
 
    SIGNATURES
 
    Pursuant to the requirements of the Securities Exchange Act of
    1934, the registrant has duly caused this report to be signed on
    its behalf by the undersigned thereunto duly authorized.
 
    SCHERING-PLOUGH CORPORATION
    (Registrant)               
 
    Steven H. Koehler
    Vice President and Controller
    (Duly Authorized Officer
    and Chief Accounting Officer)
 
    Date: May 6, 2008
    
    52