Exhibit 13 MANAGEMENT'S DISCUSSION AND ANALYSIS OF OPERATIONS AND FINANCIAL CONDITION NET SALES Consolidated net sales in 1999 totaled $9.2 billion, an increase of 14 percent over 1998, due to volume growth of 13 percent and price increases of 1 percent. Foreign exchange had a less than 1 percent impact on the sales increase. Net sales in the United States increased 14 percent versus 1998 and advanced 13 percent internationally. Foreign exchange negatively impacted the international sales growth by 1 percent. Consolidated 1998 net sales of $8.1 billion advanced 19 percent over 1997, reflecting volume growth of 19 percent and price increases of 2 percent, tempered by unfavorable foreign exchange of 2 percent. The acquisition of the Mallinckrodt Inc. animal health business in June 1997 favorably impacted sales growth by 3 percent. The sales of this business were included for only half the year in 1997 and for the full year in 1998. Net sales by major therapeutic category for the years ended 1999, 1998 and 1997 were as follows ($ in millions): % Increase (Decrease) 1999 1998 1997 1999/98 1998/97 Allergy & Respiratory $3,850 $3,375 $2,708 14% 25 % Anti-infective & Anticancer 1,738 1,263 1,156 38 9 Dermatologicals 682 619 571 10 8 Cardiovasculars 673 750 637 (10) 18 Other Pharmaceuticals 792 688 649 16 6 Animal Health 678 647 389 5 66 Foot Care 348 336 300 3 12 Over-the-Counter (OTC) 221 218 220 1 (1) Sun Care 194 181 148 7 22 Consolidated net sales $9,176 $8,077 $6,778 14% 19 % Worldwide net sales of allergy and respiratory products increased 14 percent in 1999 and 25 percent in 1998, due to continued strong market growth for the CLARITIN line of nonsedating antihistamines. Worldwide net sales of the CLARITIN brand totaled $2.7 billion in 1999, $2.3 billion in 1998 and $1.7 billion in 1997. Franchise sales of nasal inhaled steroid products, which include VANCENASE allergy products and NASONEX, a once-daily corticosteroid for allergic rhinitis, increased in 1999 and 1998 due to market expansion in the United States and the launch of NASONEX in several international markets. Sales of VANCERIL, an orally inhaled steroid for asthma, declined $14 million in 1999 due to manufacturing issues and branded competition. Net sales of worldwide anti-infective and anticancer products rose 38 percent compared with 1998. Growth was led by combined worldwide sales of INTRON A (interferon alfa-2b) and REBETRON Combination Therapy, containing REBETOL (ribavirin) Capsules and INTRON A Injection, which totaled $1.1 billion, up 56 percent from 1998. Sales of these products grew because of increased use in the treatment of chronic hepatitis C. The U.S. and international launches of TEMODAR, a chemotherapy agent for treating certain types of brain tumors, also contributed to the increase in this therapeutic category's sales in 1999. These sales increases were moderated by lower sales of EULEXIN, a prostate cancer therapy, due to generic and branded competition. In 1998, worldwide net sales of anti-infective and anticancer products increased 9 percent due to INTRON A and the mid-year 1998 introduction of REBETRON Combination Therapy in the United States. This increase was moderated by lower sales of EULEXIN due to generic and branded competition. Dermatological products' worldwide net sales increased 10 percent in 1999 and 8 percent in 1998, due to higher sales of LOTRISONE, an antifungal/anti-inflammatory cream, and ELOCON, a medium-potency topical steroid. Worldwide net sales of cardiovascular products declined 10 percent in 1999, due to generic competition in the United States against IMDUR, an oral nitrate for angina, and NORMODYNE, an alpha-beta blocker for hypertension. Partially offsetting these declines were higher U.S. sales of INTEGRILIN, a platelet receptor glycoprotein IIb/IIIa inhibitor, due to increased market penetration following its launch in the second quarter of 1998. Sales of K-DUR, a sustained-release potassium chloride supplement, increased in 1999 due to market share growth. In 1998, worldwide net sales of cardiovascular products advanced 18 percent, reflecting U.S. market expansion and market share growth for IMDUR and K-DUR. Other pharmaceuticals consist of products that do not fit into the Company's major therapeutic categories, such as SUBUTEX, a treatment for opiate addiction, and revenues received from Novo Nordisk related to the Company's co-promotion agreement for PRANDIN, an oral antidiabetic agent. Worldwide sales of animal health products increased 5 percent in 1999. Sales growth was driven by NUFLOR, a broad-spectrum, multi-species antibiotic, and BANAMINE, a non-steroidal anti-inflammatory agent. Sales of animal health products in 1998 increased 66 percent over 1997. Adjusting for the 1997 acquisition of the Mallinckrodt animal health business, 1998 sales would have increased 12 percent. Sales growth in 1998 was again driven by BANAMINE and NUFLOR. Foot care product sales rose 3 percent in 1999 led by increases in the DR. SCHOLL'S insoles product line due to new product introductions and line extensions. Sales grew 12 percent in 1998, reflecting increases in the DR. SCHOLL'S and antifungal product lines. Over-the-counter (OTC) product sales increased 1 percent in 1999 due to a strong spring cough/cold season. OTC product sales decreased slightly in 1998. Sun care sales were up 7 percent in 1999 primarily due to market growth. In 1998, sales grew 22 percent due to early 1999 season purchases. SUMMARY OF COSTS AND EXPENSES: (Dollars in millions) % Increase 1999 1998 1997 1999/98 1998/97 Cost of sales . . . . . . $1,800 $1,601 $1,308 12 % 22 % % of net sales. . . . . . 19.6 % 19.8 % 19.3 % Selling, general and administrative . . .. . $3,434 $3,141 $2,664 9 % 18 % % of net sales. . . . . . 37.4 % 38.9 % 39.3 % Research and development. $1,191 $1,007 $ 847 18 % 19 % % of net sales. . . . . . 13.0 % 12.5 % 12.5 % Cost of sales as a percentage of net sales in 1999 decreased slightly versus 1998, due to favorable sales mix. The increase of 1998 cost of sales as a percentage of net sales versus 1997 reflects higher royalties and the inclusion of Mallinckrodt animal health products, which generally have lower gross margins. Selling, general and administrative expenses in 1999 and 1998 decreased as a percentage of sales as sales growth outpaced expansion of the field force and increased promotional and selling-related spending. Research and development expenses grew 18 percent to $1.2 billion and represented 13.0 percent of sales in 1999. In 1998, research and development expenses increased 19 percent over 1997 and represented 12.5 percent of sales. The higher spending in both years reflects the Company's funding of both internal research efforts and research collaborations with various partners to develop a steady flow of innovative products. The Company expects research and development spending for 2000 to increase by approximately 15 percent. INCOME BEFORE INCOME TAXES Income before income taxes totaled $2.8 billion in 1999, an increase of 20 percent over 1998. In 1998, income before income taxes was $2.3 billion, up 22 percent over $1.9 billion in 1997. INCOME TAXES The Company's effective tax rate was 24.5 percent for the years 1999, 1998 and 1997. The effective tax rate for each period was lower than the U.S. statutory income tax rate principally due to tax incentives in certain jurisdictions where manufacturing facilities are located. For additional information, see "Income Taxes" in the Notes to Consolidated Financial Statements. NET INCOME Net income in 1999 increased 20 percent to $2.1 billion. Net income in 1998 increased 22 percent over 1997. Differences in year-to-year exchange rates had a less than 1 percent impact on net income growth in 1999. After eliminating exchange differences in 1998, net income would have risen approximately 24 percent. EARNINGS PER COMMON SHARE Diluted earnings per common share rose 20 percent in 1999 to $1.42 and 22 percent in 1998 to $1.18. Foreign currency exchange had no impact on 1999 diluted earnings per common share. The strengthening of the U.S. dollar against most foreign currencies decreased growth in earnings per common share in 1998. Excluding the impact of exchange rate fluctuations, diluted earnings per common share would have increased approximately 24 percent in 1998. Basic earnings per common share increased 20 percent in 1999 to $1.44 and 22 percent in 1998 to $1.20. Under existing share repurchase programs authorized by the Board of Directors, approximately 18 million common shares were repurchased during 1999, 1998 and 1997. A $1 billion program was authorized in September 1997 and commenced in January 1998. At December 31, 1999, approximately 13.3 million shares had been acquired under the 1997 authorization and the program was approximately 65 percent complete. YEAR 2000 Many computer systems ("IT systems") and equipment and instruments with embedded microprocessors ("non-IT systems") had been designed to recognize only the last two digits of a calendar year. As previously reported, the Company undertook an extensive project to remediate or replace its date-sensitive IT and non-IT systems. These systems have functioned properly since the first of the year and management believes that future operations will be unaffected by these matters. The Company did not experience any significant increase in product sales as a result of Year 2000 concerns. As of December 31, 1999, the Company spent $66 million on the Year 2000 remediation/replacement project; $20 million has been capitalized and $46 million has been expensed. The expense for 1999 was $17 million, which is approximately 10 percent of the Company's overall annual information systems budget. Additional costs to repair or replace non-critical, non-IT equipment will continue into the year 2000, but the costs are not expected to be significant. The estimates and conclusions in this description of the Year 2000 issue contain forward-looking statements and are based on management's estimates of future events. EURO On January 1, 1999, certain member countries of the European Union established a new common currency, the euro. Also on January 1, 1999, the participating countries fixed the rate of exchange between their existing legacy currencies and the euro. The new euro currency will eventually replace the legacy currencies currently in use in each of the participating countries. Euro bills and coins will not be issued until January 1, 2002. Companies operating within the participating countries may, at their discretion, choose to operate in either legacy currencies or the euro until January 1, 2002. The Company expects the majority of its affected subsidiaries to continue to operate in their respective legacy currencies during the next two years. The Company can, however, accommodate transactions for customers and suppliers operating in either legacy currency or euros. The Company believes that the creation of the euro will not significantly change its market risk with respect to foreign exchange. Having a common European currency may result in certain changes to competitive practices, product pricing and marketing strategies. Although we are unable to quantify these effects, if any, management at this time does not believe the creation of the euro will have a material effect on the Company. ACQUISITION In June 1997, the Company acquired the worldwide animal health operations of Mallinckrodt Inc. for approximately $490 million, which includes the assumption of debt and direct costs of the acquisition. The addition of the Mallinckrodt operations has created broader product lines and expanded geographic distribution capabilities for our animal health products. For additional information, see "Acquisition" in the Notes to Consolidated Financial Statements. ENVIRONMENTAL MATTERS The Company has obligations for environmental clean-up under various state, local and federal laws, including the Comprehensive Environmental Response, Compensation and Liability Act, commonly known as Superfund. Environmental expenditures have not had and, based on information currently available, are not anticipated to have a material impact on the Company. For additional information, see "Legal and Environmental Matters" in the Notes to Consolidated Financial Statements. ADDITIONAL FACTORS INFLUENCING OPERATIONS In the United States, many of the Company's pharmaceutical products are subject to increasingly competitive pricing as managed care groups, institutions, government agencies and other buying groups seek price discounts. In most international markets, the Company 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 the Company is unable to predict the final form and timing of any future domestic and international governmental or other health care initiatives, their effect on operations and cash flows cannot be reasonably estimated. Similarly, the effect on operations and cash flows of decisions of managed care groups and other buying groups concerning formularies, pharmaceutical reimbursement policies and availability of the Company's pharmaceutical products cannot be reasonably estimated. The market for pharmaceutical products is competitive. The Company's operations may be affected by technological advances of competitors, industry consolidation, patents granted to competitors, new products of competitors and generic competition as the Company'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. Uncertainties inherent in government regulatory approval processes, including, among other things, delays in approval of new products, may also affect the Company's operations. The effect on operations of regulatory approval processes cannot be predicted. The Company is subject to the jurisdiction of various national, state and local regulatory agencies and is, therefore, subject to potential administrative actions. Of particular importance is the Food and Drug Administration (FDA) in the United States. It has jurisdiction over all the Company's businesses and administers requirements covering the testing, safety, effectiveness, approval, manufacturing, labeling and marketing of the Company's products. From time to time, agencies, including the FDA, may require the Company to address various manufacturing, advertising, labeling or other regulatory issues. Failure to comply with governmental regulations can result in delays in the release of products, seizure or recall of products, suspension or revocation of the authority necessary for the production and sale of products, fines and other civil or criminal sanctions. From time to time, the Company has received Warning Letters from the FDA pertaining to various manufacturing issues. Among these, the Company has received a Warning Letter from the FDA relating specifically to manufacturing issues identified during FDA inspections of the Company's aerosol products (albuterol and VANCERIL) manufacturing facilities in New Jersey. The Company is implementing remedial actions at these facilities. The Company has met with the FDA on several occasions to apprise the agency of the scope and status of these activities. An FDA inspection of the Company's New Jersey manufacturing facilities is ongoing. The Company cannot predict whether its remedial actions will resolve the FDA's concerns, whether the FDA will take any further action or the effect of this matter on the Company's operations. Under certain circumstances, the Company may deem it advisable to initiate product recalls. In 1999, the Company voluntarily chose to initiate several recalls, including a recall of certain shipments of albuterol and VANCERIL manufactured at its New Jersey facilities. LIQUIDITY AND FINANCIAL RESOURCES Cash generated from operations continues to be the Company's major source of funds to finance working capital, capital expenditures, acquisitions, shareholder dividends and common share repurchases. Cash provided by operating activities totaled $1,893 million in 1999, $2,026 million in 1998 and $1,845 million in 1997. Year-to-year changes in cash provided by operating activities result from the timing of receipts and disbursements as well as from an overall net investment in working capital necessitated by the growth in the business. Capital expenditures amounted to $543 million in 1999, $389 million in 1998 and $405 million in 1997. Commitments for future capital expenditures totaled $179 million at December 31, 1999. Cash flow related to financing activities included equity proceeds as well as proceeds from short-term borrowings. Common shares repurchased in 1999 totaled 9.9 million shares at a cost of $504 million. In 1998, 3.4 million shares were repurchased for $141 million and, in 1997, 4.8 million shares were repurchased at a cost of $132 million. Dividend payments of $716 million were made in 1999, compared with $627 million in 1998 and $542 million in 1997. Dividends per common share were $0.485 in 1999, up from $0.425 in 1998 and $0.368 in 1997. Cash and cash equivalents totaled $1,876 million, $1,259 million and $714 million at December 31, 1999, 1998 and 1997, respectively. Short-term borrowings and current portion of long-term debt totaled $728 million at year-end 1999, $558 million in 1998 and $581 million in 1997. The Company's ratio of debt to total capital remained at 12 percent in 1999. The Company's liquidity and financial resources continued to be sufficient to meet its operating needs. As of December 31, 1999, the Company had $1.2 billion in unused lines of credit, including $876 million available under the $1 billion multi-currency unsecured revolving credit facility expiring in 2001. The Company had A-1+ and P-1 ratings for its commercial paper, and AA and Aa2 general bond ratings from Standard & Poor's and Moody's, respectively, as of December 31, 1999. MARKET RISK DISCLOSURES The Company is exposed to market risk primarily from changes in foreign currency exchange rates and, to a lesser extent, from interest rates. The following describes the nature of the risks and demonstrates that, in general, such market risk is not material to the Company. Foreign Currency Exchange Risk The Company operates in more than 40 countries worldwide. In 1999, sales outside the United States accounted for approximately 36 percent of worldwide sales. Virtually all these sales were denominated in currencies of the local country. As such, the Company's reported profits and cash flows are exposed to changing exchange rates. In 1999, changes in foreign exchange rates reduced sales by less than 1 percent and had no impact on 1999 diluted earnings per common share. To date, management has not deemed it cost-effective to engage in a formula-based program of hedging the profits and cash flows of foreign operations using derivative financial instruments. Because the Company's foreign subsidiaries purchase significant quantities of inventory payable in U.S. dollars, managing the level of inventory and related payables and the rate of inventory turnover provides a level of protection against adverse changes in exchange rates. In addition, the risk of adverse exchange rate change is mitigated by the fact that the Company's foreign operations are widespread. The widespread nature of the Company's foreign operations is the primary reason that the overall economic weakness in certain Latin American countries is not expected to significantly impact future operations of the Company. In addition, at any point in time, the Company's foreign subsidiaries hold financial assets and liabilities that are denominated in currencies other than U.S. dollars. These financial assets and liabilities consist primarily of short-term, third- party and intercompany receivables and payables. Changes in exchange rates affect these financial assets and liabilities. For the most part, however, gains or losses arise from translation and, as such, do not significantly affect net income. On occasion, the Company has used derivatives to hedge specific short-term risk situations involving foreign currency exposures. However, these derivative transactions have not been material. Interest Rate and Equity Price Risk The financial assets of the Company that are exposed to changes in interest rates and equity prices include debt and equity securities held in non-qualified trusts for employee benefits and equity securities acquired in connection with in-licensing arrangements. The trust investments totaled approximately $185 million at December 31, 1999. Due to the long-term nature of the liabilities that these assets fund, the Company's exposure to market risk is low. A decline in market value of these investments would not necessitate any near-term funding of the trusts. In connection with certain research and development in- licensing arrangements, on occasion the Company acquires equity securities of the licensee company. These investments are generally accounted for as available-for-sale and, as such, carried at market value. The total market value of these investments at December 31, 1999, was $119 million. See "Financial Instruments" in the Notes to Consolidated Financial Statements for additional information. The other financial assets of the Company do not give rise to significant interest rate risk due to their short duration. The financial obligations of the Company that are exposed to changes in interest rates are generally limited to short-term borrowings and a $200 million equity-type security issued in 1999. All other borrowings are not significant. Although the borrowings are, for the most part, floating rate obligations, the interest rate risk posed by these borrowings is low because the amount of this obligation is small in relation to annual cash flow. The Company has the ability to pay off these borrowings quickly if interest rates were to increase significantly. Interest Rate Swaps In 1991 and 1992, the Company utilized interest rate swaps as part of its international cash management strategy. For additional information, see "Financial Instruments" in the Notes to Consolidated Financial Statements. These swaps subject the Company to a moderate degree of market risk. The Company accounts for these swaps using fair value accounting, with changes in the fair value recorded in earnings. The fair value of these swaps was an asset of $1 million at December 31, 1999. The fair value of these swaps at December 31, 1998, was less than $100 thousand. It is estimated that a 10 percent change in interest rate structure could change the fair value of the swaps by approximately $2 million. During 1999, the Company purchased a $200 million variable rate, three-month time deposit. The Company intends to roll over this time deposit every three months until November 2003. To hedge the future variable interest receipts on this time deposit, the Company entered into an interest rate swap that matures in November 2003. Under this swap, the Company receives a fixed rate and pays a three-month variable rate. The fair value of this swap was a $6 million liability at December 31, 1999. It is estimated that a 10 percent change in interest rate structure could change the fair value of the swap by approximately $5 million. CAUTIONARY FACTORS THAT MAY AFFECT FUTURE RESULTS This annual report and other written reports and oral statements made from time to time by the Company may contain so-called "forward-looking statements," all of which are subject to risks and uncertainties. One can identify these forward-looking statements by the use of such words as "expects," "plans," "will," "estimates," "forecasts," "projects," "believes" and other words of similar meaning. One also can identify them by the fact that they do not relate strictly to historical or current facts. These statements are likely to address the Company's growth strategy, financial results, regulatory issues, product approvals, development programs, litigation and investigations. One must carefully consider any such statement and should understand that many factors could cause actual results to differ from the Company'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. No forward-looking statement can be guaranteed, and actual future results may vary materially. The Company does not assume the obligation to update any forward-looking statement. One should carefully evaluate such statements in light of factors described in the Company's filings with the Securities and Exchange Commission, especially on Forms 10-K, 10-Q and 8-K (if any). In Item 1 of the Company's annual report on Form 10-K for the year ended December 31, 1999, the Company discusses in more detail various important factors that could cause actual results to differ from expected or historic results. The Company notes these factors for investors as permitted by the Private Securities Litigation Reform Act of 1995. One should understand that it is not possible to predict or identify all such factors. Consequently, the reader should not consider any such list to be a complete statement of all potential risks or uncertainties. SCHERING-PLOUGH CORPORATION AND SUBSIDIARIES STATEMENTS OF CONSOLIDATED INCOME (Amounts in millions, except per share figures) For the Years Ended December 31, 1999 1998 1997 Net sales . . . . . . . . . . . . . . . . . . . $9,176 $8,077 $6,778 Costs and Expenses: Cost of sales . . . . . . . . . . . . . . . 1,800 1,601 1,308 Selling, general and administrative. . . . . 3,434 3,141 2,664 Research and development . . . . . . . . . . 1,191 1,007 847 Other (income) expense, net. . . . . . . . . (44) 2 46 Total costs and expenses . . . . . . . . . . 6,381 5,751 4,865 Income before income taxes . . . . . . . . . . 2,795 2,326 1,913 Income taxes . . . . . . . . . . . . . . 685 570 469 Net income. . . . . . . . . . . . . . . . . . . $2,110 $1,756 $1,444 Diluted earnings per common share . . . . . . . $1.42 $ 1.18 $.97 Basic earnings per common share . . . . . . . . $1.44 $ 1.20 $.98 See Notes to Consolidated Financial Statements. SCHERING-PLOUGH CORPORATION AND SUBSIDIARIES STATEMENTS OF CONSOLIDATED CASH FLOWS (Amounts in millions) For the Years Ended December 31, 1999 1998 1997 Operating Activities: Net income . . . . . . . . . . . . . . . . . . . $2,110 $1,756 $1,444 Depreciation and amortization . . . . . . . . . 264 238 200 Accounts receivable . . . . . . . . . . . . . . (352) (67) (40) Inventories . . . . . . . . . . . . . . . . . . (150) (102) (43) Prepaid expenses and other assets. . . . . . . . (76) (116) (127) Accounts payable and other liabilities . . . . . 97 317 411 Net cash provided by operating activities . . . 1,893 2,026 1,845 Investing Activities: Capital expenditures . . . . . . . . . . . . . . (543) (389) (405) Purchases of investments . . . . . . . . . . . . (338) (319) (77) Reduction of investments . . . . . . . . . . . . 215 - 36 Purchase of business, net of cash acquired . . . - - (354) Other, net . . . . . . . . . . . . . . . . . . . 3 - (8) Net cash used for investing activities . . . . . (663) (708) (808) Financing Activities: Cash dividends paid to common shareholders . . . (716) (627) (542) Common shares repurchased . . . . . . . . . . . (504) (141) (132) Net change in short-term borrowings . . . . . . 187 (19) (290) Repayment of long-term debt . . . . . . . . . . (2) (42) (1) Other, net, primarily equity proceeds. . . . . . 424 57 116 Net cash used for financing activities . . . . . (611) (772) (849) Effect of exchange rates on cash and cash equivalents (2) (1) (9) Net increase in cash and cash equivalents . . . . 617 545 179 Cash and cash equivalents, beginning of year . . . 1,259 714 535 Cash and cash equivalents, end of year . . . . . . $1,876 $1,259 $ 714 See Notes to Consolidated Financial Statements. SCHERING-PLOUGH CORPORATION AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (Amounts in millions, except per share figures) At December 31, 1999 1998 ASSETS Current Assets: Cash and cash equivalents . . . . . . . . $1,876 $1,259 Accounts receivable, less allowances: 1999, $92; 1998, $98 . . . . . . . . . . 1,022 704 Inventories . . . . . . . . . . . . . . 958 841 Prepaid expenses, deferred income taxes and other current assets . . . . . . . . 1,053 1,154 Total current assets . . . . . . . . . . 4,909 3,958 Property, at cost: Land . . . . . . . . . . . . . . . . . 50 48 Buildings and improvements . . . . . . . 1,922 1,836 Equipment . . . . . . . . . . . . . . . . 1,760 1,677 Construction in progress . . . . . . . . 654 507 Total . . . . . . . . . . . . . . . . . . 4,386 4,068 Less accumulated depreciation . . . . . . 1,447 1,393 Property, net . . . . . . . . . . . . . . 2,939 2,675 Intangible assets, net . . . . . . . . . . . . 588 565 Other assets . . . . . . . . . . . . . . . . . 939 642 $9,375 $7,840 1999 1998 LIABILITIES AND SHAREHOLDERS' EQUITY Current Liabilities: Accounts payable . . . . . . . . . . . . . . . . . $ 966 $1,003 Short-term borrowings and current portion of long-term debt . . . . . . . . . . . . . . . . . 728 558 U.S., foreign and state income taxes . . . . . . . 502 505 Accrued compensation . . . . . . . . . . . . . . . 301 279 Other accrued liabilities . . . . . . . . . . . . . 712 687 Total current liabilities . . . . . . . . . . . . . 3,209 3,032 Long-term Liabilities: Deferred income taxes . . . . . . . . . . . . . . . 284 291 Other long-term liabilities . . . . . . . . . . . . 717 515 Total long-term liabilities . . . . . . . . . . . . 1,001 806 Shareholders' Equity: Preferred shares - authorized shares: 50, $1 par value; issued: none . . . . . . . . . . . . - - Common shares - authorized shares: 2,400, $.50 par value; issued: 2,030 . . . . . . . 1,015 1,015 Paid-in capital . . . . . . . . . . . . . . . . . . 675 365 Retained earnings . . . . . . . . . . . . . . . . . 8,196 6,802 Accumulated other comprehensive income . . . . . . (233) (238) Total . . . . . . . . . . . . . . . . . . . . . . . 9,653 7,944 Less treasury shares: 558, at cost . . . . . . . . 4,488 3,942 Total shareholders' equity . . . . . . . . . . . . 5,165 4,002 $9,375 $7,840 See Notes to Consolidated Financial Statements. SCHERING-PLOUGH CORPORATION AND SUBSIDIARIES STATEMENTS OF CONSOLIDATED SHAREHOLDERS' EQUITY (Amounts in millions) Accumulated Other Total Compre- Share- Common Paid-in Retained Treasury hensive holders' Shares Capital Earnings Shares Income Equity Balance December 31, 1996 $507 $172 $5,081 $(3,560) $(140) $2,060 Comprehensive income: Net income 1,444 1,444 Foreign currency translation, net of tax (101) (101) Unrealized gain (loss) on investments held available for sale, net (3) (3) Total comprehensive income 1,340 Cash dividends on common shares (542) (542) Stock incentive plans 122 (27) 95 Common shares repurchased (132) (132) Effect of 2-for-1 stock split 508 (198) (310) Balance December 31, 1997 1,015 96 5,673 (3,719) (244) 2,821 Comprehensive income: Net income 1,756 1,756 Foreign currency translation, net of tax 5 5 Unrealized gain (loss) on investments held available for sale, net 1 1 Total comprehensive income 1,762 Cash dividends on common shares (627) (627) Stock incentive plans 269 (82) 187 Common shares repurchased (141) (141) Balance December 31, 1998 1,015 365 6,802 (3,942) (238) 4,002 Comprehensive income: Net income 2,110 2,110 Foreign currency translation, net of tax (54) (54) Unrealized gain (loss) on investments held available for sale, net 59 59 Total comprehensive income 2,115 Cash dividends on common shares (716) (716) Stock incentive plans 310 (42) 268 Common shares repurchased (504) (504) Balance December 31, 1999 $1,015 $675 $8,196 $(4,488) $ (233) $5,165 See Notes to Consolidated Financial Statements. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Dollars in millions, except per share figures) ACCOUNTING POLICIES Principles of Consolidation - The consolidated financial statements include Schering-Plough Corporation and its subsidiaries. Intercompany balances and transactions are eliminated. Certain prior year amounts have been reclassified to conform to the current year presentation. Use of Estimates - The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and use assumptions that affect certain reported amounts and disclosures; actual amounts may differ. Cash and Cash Equivalents - Cash and cash equivalents include operating cash and highly liquid investments, generally with maturities of three months or less. Inventories - Inventories are valued at the lower of cost or market. Cost is determined by using the last- in, first-out method for a substantial portion of inventories located in the United States. The cost of all other inventories is determined by the first-in, first-out method. Depreciation - Depreciation is provided over the estimated useful lives of the properties, generally by use of the straight-line method. Average useful lives are 50 years for buildings, 25 years for building improvements and 12 years for equipment. Depreciation expense was $208, $191 and $166 in 1999, 1998 and 1997, respectively. Intangible Assets - Intangible assets principally include goodwill, licenses, patents and trademarks. Intangible assets are recorded at cost and amortized on the straight-line method over periods not exceeding 40 years. Accumulated amortization of intangible assets was $188 and $138 at December 31, 1999 and 1998, respectively. Intangible assets are periodically reviewed to determine recoverability by comparing their carrying values to undiscounted expected future cash flows. Foreign Currency Translation - The net assets of most of the Company's foreign subsidiaries are translated into U.S. dollars using current exchange rates. The U.S. dollar effects that arise from translating the net assets of these subsidiaries at changing rates are recorded in the foreign currency translation adjustment account, which is included in other comprehensive income. For the remaining foreign subsidiaries, non-monetary assets and liabilities are translated using historical rates, while monetary assets and liabilities are translated at current rates, with the U.S. dollar effects of rate changes included in income. Exchange gains and losses arising from translating intercompany balances of a long-term investment nature are recorded in the foreign currency translation adjustment account. Other exchange gains and losses are included in income. Net foreign exchange losses included in income were $6, $2 and $6 in 1999, 1998 and 1997, respectively. Accumulated Other Comprehensive Income - Accumulated other comprehensive income consists of the accumulated foreign currency translation adjustment account and accumulated unrealized gains and losses on securities classified for Statement of Financial Accounting Standards (SFAS) No. 115 purposes as held available for sale. At December 31, 1999 and 1998, the accumulated foreign currency translation adjustment account, net of tax, totaled $301 and $247, respectively. Revenue Recognition - Revenues from the sale of products are recorded at the time goods are shipped to customers. Earnings Per Common Share - Diluted earnings per common share are computed by dividing income by the sum of the weighted-average number of common shares outstanding plus the dilutive effect of shares issuable through deferred stock units and the exercise of stock options. Basic earnings per common share are computed by dividing income by the weighted-average number of common shares outstanding. The shares used to calculate basic earnings per common share and diluted earnings per common share are reconciled as follows: (shares in millions) 1999 1998 1997 Average shares outstanding for basic earnings per share . . . . 1,470 1,468 1,464 Dilutive effect of options and deferred stock units . . . . . . 16 20 16 Average shares outstanding for diluted earnings per share . . . 1,486 1,488 1,480 As of December 31, 1999, there were 9 million options outstanding with exercise prices higher than the average price of the Company's common stock during 1999. Accordingly, these options are not included in the dilutive effects indicated above. Recently Issued Accounting Standard - In June 1998, the Financial Accounting Standards Board (FASB) issued SFAS No. 133, "Accounting for Derivative Instruments and Hedging Activities." SFAS No. 133, as amended by SFAS No. 137, requires adoption by the Company no later than January 1, 2001. The Company plans to adopt SFAS No. 133 at that time. This statement is not expected to materially impact the Company's financial statements because the Company makes limited use of derivative financial instruments. ACQUISITION On June 30, 1997, the Company acquired the worldwide animal health business of Mallinckrodt Inc. for approximately $490, which includes the assumption of debt and direct costs of the acquisition. The acquisition was recorded under the purchase method of accounting. The excess of the purchase price over the fair value of identifiable net assets acquired is included in intangible assets, net. The results of operations of the purchased animal health business have been included in the Company's Statements of Consolidated Income from the date of acquisition. Pro forma results of the Company, assuming the acquisition had been made at the beginning of each period presented, would not be materially different from the results reported. FINANCIAL INSTRUMENTS The table below presents the carrying values and estimated fair values for the Company's financial instruments, including derivative financial instruments. Estimated fair values were determined based on market prices, where available, or dealer quotes. December 31, 1999 December 31, 1998 Carrying Estimated Carrying Estimated Value Fair Value Value Fair Value ASSETS: Cash and cash equivalents $1,876 $1,876 $1,259 $1,259 Debt and equity investments 532 532 213 213 Interest rate swap contracts 6 (6) - - LIABILITIES: Short-term borrowings and current portion of long- term debt 728 728 558 558 Long-term debt 6 6 4 4 Other financing instruments 208 193 - - Credit and Market Risk Most financial instruments expose the holder to credit risk for non-performance and to market risk for changes in interest and currency rates. The Company mitigates credit risk on derivative instruments by dealing only with financially sound counterparties. Accordingly, the Company does not anticipate loss for non- performance. The Company does not enter into derivative instruments to generate trading profits. Refer to "Market Risk Disclosures" in Management's Discussion and Analysis of Operations and Financial Condition for a discussion regarding the market risk of the Company's financial instruments. Debt and Equity Investments Investments, which are primarily included in other non- current assets, consist of a time deposit, equity securities of licensee companies and debt and equity securities held in non-qualified trusts to fund benefit obligations. Investments are primarily classified as available for sale and are carried at fair value, with unrealized gains and losses, net of tax, reported in other comprehensive income. Gross unrealized gains in 1999 were $59; gross unrealized losses in 1999 were not material. Gross unrealized gains and losses in 1998 and 1997 were not material. Interest Rate Swap Contracts In 1991 and 1992, the Company utilized interest rate swaps as part of its international cash management strategy. The notional principal of the 1991 arrangement is $650 and the notional principal of the 1992 arrangement is $950. Both arrangements have 20- year terms. At December 31, 1999, the arrangements provide for the payment of interest based upon LIBOR and the receipt of interest based upon an annual election of various floating rates. As a result, the Company remains subject to a moderate degree of market risk through maturity of the swaps. These interest rate swaps are recorded at fair value, with changes in fair value recorded in earnings. Annual net cash flows for payments and receipts under these interest rate swap contracts are not material. The net asset or liability under these interest rate swaps is recorded in other current assets or other accrued liabilities, as applicable. To hedge future variable interest receipts on a $200 time deposit purchased in 1999, the Company entered into an interest rate swap that matures in November 2003. Under the swap, the Company will receive 5.6 percent on a notional principal of $200 and will pay three-month LIBOR. The differential paid or earned on this interest rate swap has been designated as a hedge and is reflected as an adjustment to interest income over the life of the swap. COMMITMENTS Total rent expense amounted to $65 in 1999, $58 in 1998 and $44 in 1997. Future minimum rental commitments on non-cancelable operating leases as of December 31, 1999, range from $31 in 2000 to $7 in 2004, with aggregate minimum lease obligations of $20 due thereafter. The Company has commitments related to future capital expenditures totaling $179 as of December 31, 1999. BORROWINGS The Company has a $1 billion committed, multi-currency unsecured revolving credit facility expiring in 2001 from a syndicate of financial institutions. This facility is available for general corporate purposes and is considered as support for the Company's commercial paper borrowings. This line of credit does not require compensating balances; however, a nominal commitment fee is paid. At December 31, 1999, $124 had been drawn down under this facility. In addition, the Company's foreign subsidiaries had available $314 in unused lines of credit from various financial institutions at December 31, 1999. Generally, these foreign credit lines do not require commitment fees or compensating balances and are cancelable at the option of the Company or the financial institutions. Short-term borrowings consist of commercial paper issued in the United States, bank loans, notes payable and amounts drawn down under the revolving credit facility. Commercial paper outstanding at December 31, 1999 and 1998 was $495 and $339, respectively. The weighted-average interest rate for short-term borrowings at December 31, 1999 and 1998 was 6.9 percent and 5.7 percent, respectively. The Company has a shelf registration statement on file with the Securities and Exchange Commission covering the issuance of up to $200 of debt securities. The terms of these securities will be determined at the time of sale. As of December 31, 1999, no debt securities have been issued pursuant to this registration. FINANCING During 1999, a subsidiary of the Company issued $200 of equity-type securities. The securities bear a LIBOR- based yield that is substantially fixed through November 28, 2003; thereafter, the Company can elect to reset the rate annually or substantially fix the rate for the next five years. At December 31, 1999, the rate was 5.6 percent. The Company can call the securities at any time after November 30, 2004, or earlier under certain circumstances. The holders can put the securities back to the Company at any time after November 30, 2027, or earlier under certain circumstances. Because of the put and call features, this obligation is included in other long-term liabilities. INTEREST COSTS AND INCOME Interest costs were as follows: 1999 1998 1997 Interest cost incurred . . . . . . . . $41 $28 $55 Less: amount capitalized on construction . . . . . . . . . 12 9 15 Interest expense . . . . . . . . . . . $29 $19 $40 Cash paid for interest, net of amount capitalized . . . . . . . . $28 $19 $37 Interest income for 1999, 1998 and 1997 was $103, $59 and $56, respectively. Interest income and interest expense are included in other (income) expense, net. SHAREHOLDERS' EQUITY On September 22, 1998, the Board of Directors voted to increase the number of authorized common shares from 1.2 billion to 2.4 billion and approved a 2-for-1 stock split. Distribution of the split shares was made on December 2, 1998. On April 22, 1997, the Board of Directors voted to increase the number of authorized common shares from 600 million to 1.2 billion and approved a 2-for-1 stock split. Distribution of these split shares was made on June 3, 1997. All per share amounts herein have been adjusted to reflect both stock splits. A summary of treasury share transactions follows (shares in millions): 1999 1998 1997 Share balance at January 1 558 282 142 Shares issued under stock incentive plans (10) (9) (4) Purchase of treasury shares 10 3 2 Effect of 2-for-1 stock split - 282 142 Share balance at December 31 558 558 282 The Company has Preferred Share Purchase Rights outstanding that are attached to, and presently only trade with, the Company's common shares and are not exercisable. The rights will become exercisable only if a person or group acquires 20 percent or more of the Company's common stock or announces a tender offer which, if completed, would result in ownership by a person or group of 20 percent or more of the Company's common stock. Should a person or group acquire 20 percent or more of the Company's outstanding common stock through a merger or other business combination transaction, each right will entitle its holder (other than such acquirer) to purchase common shares of Schering-Plough having a market value of twice the exercise price of the right. The exercise price of the rights is $100. Following the acquisition by a person or group of beneficial ownership of 20 percent or more but less than 50 percent of the Company's common stock, the Board of Directors may call for the exchange of the rights (other than rights owned by such acquirer), in whole or in part, at an exchange ratio of one common share or one two-hundredth of a share of Series A Junior Participating Preferred Stock, per right. Also, prior to the acquisition by a person or group of beneficial ownership of 20 percent or more of the Company's common stock, the rights are redeemable for $.005 per right at the option of the Board of Directors. The rights will expire on July 10, 2007, unless earlier redeemed or exchanged. The Board of Directors is also authorized to reduce the 20 percent thresholds referred to above to not less than the greater of (i) the sum of .001 percent and the largest percentage of the outstanding shares of common stock then known to the Company to be beneficially owned by any person or group of affiliated or associated persons and (ii) 10 percent, except that following the acquisition by a person or group of beneficial ownership of 20 percent or more of the Company's common stock no such reduction may adversely affect the interests of the holders of the rights. STOCK INCENTIVE PLANS Under the terms of the Company's 1997 Stock Incentive Plan, 72 million of the Company's common shares may be granted as stock options or awarded as deferred stock units to officers and certain employees of the Company through December 2002. Option exercise prices equal the market price of the common shares at their grant dates. Options expire not later than 10 years after the date of grant. Standard options granted generally have a one-year vesting term. Other options granted vest 20 percent per year for five years starting five years after the date of grant. Deferred stock units are payable in an equivalent number of common shares; the shares are distributable in a single installment or in five equal annual installments generally commencing one year from the date of the award. The following table summarizes stock option activity over the past three years under the current and prior plans (number of options in millions): 1999 1998 1997 Weighted- Weighted- Weighted- Number Average Number Average Number Average Of Exercise of Exercise of Exercise Options Price Options Price Options Price Outstanding at January 1. . . . 42 $19.31 42 $12.20 41 $ 9.57 Granted . . . . 9 52.86 11 39.06 9 20.57 Exercised . . . (8) 13.96 (10) 10.47 (8) 7.76 Canceled or expired. . . (1) 32.79 (1) 30.87 - - Outstanding at December 31 . . 42 $27.34 42 $19.31 42 $12.20 Options exercisable at December 31 . 27 $21.16 25 $12.02 26 $ 9.28 The Company accounts for its stock compensation arrangements using the intrinsic value method. If the fair value method of accounting was applied as defined in SFAS No. 123, "Accounting for Stock-Based Compensation," the Company's pro forma net income would have been $2,044, $1,704 and $1,421 for 1999, 1998 and 1997, respectively. Pro forma diluted earnings per share would have been $1.38, $1.15 and $.96 for 1999, 1998 and 1997, respectively, and pro forma basic earnings per share would have been $1.39, $1.16 and $.97 for 1999, 1998 and 1997, respectively. The weighted-average fair value per option granted in 1999, 1998 and 1997 was $12.38, $9.24 and $4.60, respectively. The fair values were estimated using the Black-Scholes option pricing model based on the following assumptions: 1999 1998 1997 Dividend yield 2.2% 2.4% 2.6% Volatility 23% 24% 20% Risk-free interest rate 5.1% 5.5% 6.1% Expected term of options (in years) 5 5 5 In 1999, 1998 and 1997, the Company awarded deferred stock units totaling 2.4 million, 2.5 million and 3.0 million, respectively. The expense recorded in 1999, 1998 and 1997 for deferred stock units was $61, $45 and $32, respectively. INVENTORIES Year-end inventories consisted of the following: 1999 1998 Finished products. . . . . . . . . . . . . . $437 $483 Goods in process . . . . . . . . . . . . . . 267 174 Raw materials and supplies . . . . . . . . . 254 184 Total inventories . . . . . . . . . . . . . $958 $841 Inventories valued on a last-in, first-out basis comprised approximately 31 percent and 28 percent of total inventories at December 31, 1999 and 1998, respectively. The estimated replacement cost of total inventories at December 31, 1999 and 1998 was $972 and $864, respectively. RETIREMENT PLANS AND OTHER POST-RETIREMENT BENEFITS The Company has defined benefit pension plans covering eligible employees in the United States and certain foreign countries, and the Company provides post- retirement health care benefits to its eligible U.S. retirees and their dependents. The components of net pension and other post-retirement benefit (income) expense were as follows: Post-retirement Health Care Retirement Plans Benefits 1999 1998 1997 1999 1998 1997 Service cost $42 $41 $37 $5 $5 $4 Interest cost 62 59 54 11 11 11 Expected return on plan assets (101) (89) (81) (18) (17) (15) Amortization, net (5) (6) (5) (2) (1) (1) Net $(2) $5 $5 $(4) $(2) $(1) The components of the changes in the benefit obligations were as follows: Post-retirement Health Care Retirement Plans Benefits 1999 1998 1999 1998 Benefit obligations at January 1. . . . $987 $867 $177 $162 Service cost . . . . . . . . . . . . . 42 41 5 5 Interest cost . . . . . . . . . . . . . 62 59 11 11 Assumption changes. . . . . . . . . . . (101) 51 (20) 10 Effects of exchange rate changes. . . . (9) 5 - - Benefits paid . . . . . . . . . . . . . (41) (62) (11) (8) Actuarial (gains) and losses . . . . . 22 22 8 (3) Plan amendments . . . . . . . . . . . . 6 4 - - Benefit obligations at December 31. . . $968 $987 $170 $177 Benefit obligations of overfunded plans $740 $790 $170 $177 Benefit obligations of underfunded plans 228 197 The components of the changes in plan assets were as follows: Post-retirement Health Care Retirement Plans Benefits 1999 1998 1999 1998 Fair value of plan assets, primarily stocks and bonds, at January 1 . . . . $1,145 $1,039 $228 $210 Actual return on plan assets . . . . . 188 135 42 26 Contributions . . . . . . . . . . . . . 14 13 - - Effects of exchange rate changes . . . (9) - - - Benefits paid . . . . . . . . . . . . (39) (42) (11) (8) Fair value of plan assets at December 31 $1,299 $1,145 $259 $228 Plan assets of overfunded plans $1,219 $1,086 $259 $228 Plan assets of underfunded plans 80 59 In addition to the plan assets indicated above, at December 31, 1999 and 1998, securities of $79 and $70, respectively, were held in non-qualified trusts designated to provide pension benefits for certain underfunded plans. The following is a reconciliation of the funded status of the plans to the Company's balance sheet at December 31: Post-retirement Health Care Retirement Plans Benefits 1999 1998 1999 1998 Plan assets in excess of benefit obligations . . . . . . . . . . . . . $331 $158 $89 $51 Unrecognized net transition asset . . . (37) (45) - - Unrecognized prior service costs. . . . 16 12 (5) (6) Unrecognized net actuarial (gain) . . . (189) (14) (85) (51) Net asset (liability) . . . . . . . . . $121 $111 $(1) $(6) The weighted-average assumptions employed at December 31, 1999 and 1998 were: Post-retirement Health Care Retirement Plans Benefits 1999 1998 1999 1998 Discount rate 7.0% 6.6% 7.5% 6.5% Long-term expected rate of return on plan assets 9.5% 9.9% 9.0% 9.0% Rate of increase in future compensation 3.9% 4.1% The weighted-average assumed health care cost trend rates used for post-retirement measurement purposes were 6.6 percent for 2000, trending down to 5.0 percent by 2002. A 1 percent increase or decrease in the assumed health care cost trend rate would increase or decrease combined post-retirement service and interest cost by $3 and the post-retirement benefit obligation by $24. The Company has a defined contribution profit-sharing plan covering substantially all its full-time domestic employees who have completed one year of service. The annual contribution is determined by a formula based on the Company's income, shareholders' equity and participants' compensation. Profit-sharing expense totaled $74, $66 and $58 in 1999, 1998 and 1997, respectively. INCOME TAXES U.S. and foreign operations contributed to income before income taxes as follows: 1999 1998 1997 United States . . . . . . . . . . . . . . . . $2,031 $1,609 $1,349 Foreign . . . . . . . . . . . . . . . . . . . 764 717 564 Total income before income taxes. . . . . . . $2,795 $2,326 $1,913 The components of income tax expense were as follows: 1999 1998 1997 Current: Federal. . . . . . . . . . . . . . . . . $464 $442 $306 Foreign . . . . . . . . . . . . . . . . 185 184 160 State. . . . . . . . . . . . . . . . . . 13 14 10 Total current. . . . . . . . . . . . . . 662 640 476 Deferred: Federal and state. . . . . . . . . . . . 46 (19) 30 Foreign. . . . . . . . . . . . . . . . . (23) (51) (37) Total deferred . . . . . . . . . . . . . 23 (70) (7) Total income tax expense . . . . . . . . . $685 $570 $469 The difference between the U.S. statutory tax rate and the Company's effective tax rate was due to the following: 1999 1998 1997 U.S. statutory tax rate. . . . . . . . . . 35.0% 35.0% 35.0% Increase (decrease) in taxes resulting from: Lower rates in other jurisdictions, net . . . . . . . . . . . . . . . . . . (10.5) (10.6) (10.0) Research tax credit . . . . . . . . . . (.8) (.8) (.6) All other, net . . . . . . . . . . . . . .8 .9 .1 Effective tax rate . . . . . . . . . . . . 24.5% 24.5% 24.5% The lower rates in other jurisdictions, net, are primarily attributable to certain employment and capital investment actions taken by the Company. As a result, income from manufacturing activities in these jurisdictions is subject to lower tax rates through 2018. As of December 31, 1999 and 1998, the Company had total deferred tax assets of $733 and $741, respectively, and deferred tax liabilities of $521 and $506, respectively. Valuation allowances are not significant. Significant deferred tax assets at December 31, 1999 and 1998 were for operating costs not currently deductible for tax purposes and totaled $389 and $425, respectively. Significant deferred tax liabilities at December 31, 1999 and 1998 were for depreciation differences, $222 and $233, respectively, and retirement plans, $67 and $61, respectively. Other current assets include deferred income taxes of $507 and $521 at December 31, 1999 and 1998, respectively. Deferred taxes are not provided on undistributed earnings of foreign subsidiaries (considered to be permanent investments), which at December 31, 1999, approximated $5,020. Determining the tax liability that would arise if these earnings were remitted is not practicable. As of December 31, 1999, the U.S. Internal Revenue Service has completed its examination of the Company's tax returns for all years through 1988, and there are no unresolved issues outstanding for those years. Total income tax payments during 1999, 1998 and 1997 were $502, $458 and $368, respectively. LEGAL AND ENVIRONMENTAL MATTERS The Company 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), the Company is alleged to be a potentially responsible party (PRP). The Company estimates its obligations for cleanup costs for Superfund sites based on information obtained from the federal Environmental Protection Agency, an equivalent state agency, and/or studies prepared by independent engineers, and on the probable costs to be paid by other PRPs. The Company records a liability for environmental assessments and/or cleanup when it is probable a loss has been incurred and the amount can reasonably be estimated. The Company is also involved in various other claims and legal proceedings of a nature considered normal to its business, including product liability cases. The estimated costs the Company expects to pay in these cases are accrued when the liability is considered probable and the amount can reasonably be estimated. Consistent with trends in the pharmaceutical industry, the Company is self-insured for certain events. The recorded liabilities for the above matters at December 31, 1999 and 1998 and the related expenses incurred during the three years ended December 31, 1999, were not material. Expected insurance recoveries have not been considered in determining the costs for environmental-related liabilities. Management believes that, except for the matters discussed in the following paragraphs, it is remote that any material liability in excess of the amounts accrued will be incurred. The Company is a defendant in more than 110 antitrust actions commenced (starting in 1993) in state and federal courts by independent retail pharmacies, chain retail pharmacies and consumers. The plaintiffs allege price discrimination and/or conspiracy between the Company and other defendants to restrain trade by jointly refusing to sell prescription drugs at discounted prices to the plaintiffs. One of the federal cases is a class action on behalf of approximately two-thirds of all retail pharmacies in the United States and alleges a price-fixing conspiracy. The Company agreed to settle the federal class action for a total of $22, which has been paid in full. The settlement provides, among other things, that the Company shall not refuse to grant discounts on brand-name prescription drugs to a retailer based solely on its status as a retailer and that, to the extent a retailer can demonstrate its ability to affect market share of a Company brand-name prescription drug in the same manner as a managed care organization with which the retailer competes, it will be entitled to negotiate similar incentives subject to the rights, obligations, exemptions and defenses of the Robinson- Patman Act and other laws and regulations. The United States District Court in Illinois approved the settlement of the federal class action in June 1996. In June 1997, the Seventh Circuit Court of Appeals dismissed all appeals from that settlement, and it is not subject to further review. The defendants that did not settle the class action proceeded to trial in September 1998. The trial ended in November 1998 with a directed verdict in the defendants' favor. In April 1997, certain of the plaintiffs in the federal class action commenced another purported class action in United States District Court in Illinois against the Company and the other defendants who settled the previous federal class action. The complaint alleges that the defendants conspired not to implement the settlement commitments following the settlement discussed above. The District Court has denied the plaintiffs' motion for a preliminary injunction hearing. The Company has settled all of the state retailer actions, except California and Alabama. The settlement amounts were not material to the Company. In addition, in June 1999, the Alabama Supreme Court reversed the denial of a motion for judgment on the pleadings in the Alabama retailer case. The court held that the Alabama antitrust law did not apply to conspiracies alleged to be in interstate commerce. Based on that ruling, the Alabama retailer case has been dismissed. The Company has settled all of the state consumer cases, except Alabama, North Dakota, South Dakota, West Virginia and New Mexico. The settlement amounts were not material to the Company. A motion is pending to dismiss the Alabama consumer case based on the Alabama Supreme Court decision in the retailer case. In May 1998, the Company settled six of the federal antitrust cases brought by 26 food and drug chain retailers and several independent retail stores. Plaintiffs in these cases comprise collectively approximately one-fifth of the prescription drug retail market. Also in 1999, the Company settled federal antitrust cases brought by independent pharmacists and small pharmacy chains comprising about 2 percent of the prescription drug retail market. The settlement amounts were not material to the Company. Plaintiffs in these antitrust actions generally seek treble damages in an unspecified amount and an injunction against the allegedly unlawful conduct. The Company believes all the antitrust actions are without merit and is defending itself vigorously. In March 1996, the Company was notified that the United States Federal Trade Commission (FTC) is investigating whether the Company, along with other pharmaceutical companies, conspired to fix prescription drug prices. The investigation is ongoing. The Company believes that its actions have been lawful and proper and is cooperating in the investigation. However, it is not possible to predict the outcome of the investigation, which could result in the imposition of fines, penalties and injunctive or administrative remedies. In October 1999, the Company received a subpoena from the U.S. Attorney's Office for the Eastern District of Pennsylvania, pursuant to the Health Insurance Portability and Accountability Act of 1996, concerning the Company's contracts with pharmacy benefit managers (PBMs) and managed care organizations to provide disease management services in connection with the marketing of its pharmaceutical products. It appears that the subpoena is one of a number addressed to industry participants including PBMs, managed care organizations and manufacturers as a part of an inquiry into, among other things, marketing practices. The government's inquiry appears to focus on whether the Company's disease management and other marketing programs comply with federal health care laws and whether the value of its disease management programs should have been included in the calculation of rebates to the government. The Company believes that its disease management and other marketing programs have been designed to comply with the law and that its rebate calculations have properly excluded the value of its disease management programs. The Company is cooperating in the investigation. However, it is not possible to predict the outcome of the investigation, which could include the imposition of fines, penalties and injunctive or administrative remedies. Nor can the Company predict whether the investigation will affect its marketing practices or sales. The Company is a party to an arbitration filed by Biogen, Inc. (Biogen) in a dispute over the method used by the Company to determine the amount of royalties payable to Biogen on sales of REBETRON Combination Therapy containing REBETOL Capsules and INTRON A Injection. The Company believes that it should prevail in this arbitration. However, there can be no assurance that the Company will prevail. In February 1998, Geneva Pharmaceuticals, Inc. (Geneva) submitted an Abbreviated New Drug Application (ANDA) to the U.S. Food and Drug Administration (FDA) seeking to market a generic form of CLARITIN in the United States several years before the expiration of the Company's patents. Geneva has alleged that certain of the Company's U.S. CLARITIN patents are invalid and unenforceable. The CLARITIN patents are material to the Company's business. In March 1998, the Company filed suit in federal court seeking a ruling that Geneva's ANDA submission constitutes willful infringement of the Company's patents and that its challenge to the Company's patents is without merit. The Company believes that it should prevail in the suit. However, as with any litigation, there can be no assurance that the Company will prevail. During 1999, Copley Pharmaceutical, Inc., Teva Pharmaceuticals, Inc., Novex Pharma and Zenith Goldline Pharmaceuticals individually notified the Company that each had submitted an ANDA to the FDA seeking to market certain generic forms of CLARITIN in the United States before the expiration of certain of the Company's patents, and in 2000 Andrx Pharmaceuticals, L.L.C. (Andrx) made a similar submission relating to CLARITIN- D 24 Hour tablets. Each has alleged that one or more of those patents are invalid and unenforceable. In each case, except Andrx, the Company has filed suit in federal court seeking a ruling that the applicable ANDA submission and proposed marketing of a generic product constitute willful infringement of the Company's patent and that the challenge to the patent is without merit. The Company will file a similar suit against Andrx in federal court. The Company believes that it should prevail in these suits. However, as with any litigation, there can be no assurance that the Company will prevail. In January 2000, Hoffman-La Roche Inc. filed actions against the Company in United States District Court in New Jersey and in France alleging that the Company's PEG-INTRON (peginterferon alfa-2b) infringes Hoffman-La Roche Inc.'s patents on certain pegylated interferons. The Company believes that it should prevail in these suits. However, as with any litigation, there can be no assurance that the Company will prevail. QUARTERLY DATA (UNAUDITED) Three Months Ended March 31, June 30, September 30, December 31, 1999 1998 1999 1998 1999 1998 1999 1998 Net sales . . . . $2,186 $1,908 $2,451 $2,124 $2,236 $1,986 $2,303 $2,059 Cost of sales. . . 432 380 472 423 438 394 458 404 Gross profit . . . 1,754 1,528 1,979 1,701 1,798 1,592 1,845 1,655 Selling, general and administrative . . 794 712 963 828 814 762 863 839 Research and development . . 262 224 297 261 305 257 327 265 Other (income) expense, net . . (15) (4) (7) 9 (7) 1 (15) (4) Income before income taxes . . 713 596 726 603 686 572 670 555 Income taxes . . 174 146 179 148 168 140 164 136 Net income. . . . $ 539 $ 450 $ 547 $ 455 $ 518 $ 432 $ 506 $419 Diluted earnings per common share . $ .36 $ .30 $ .37 $ .31 $ .35 $ .29 $ .34 $.28 Basic earnings per common share . . .37 .31 .37 .31 .35 .29 .35 .29 Dividends per common share . . .11 .095 .125 .11 .125 .11 .125 .11 Common share prices: High . . . . . 58 7/8 42 3/4 60 3/4 46 11/16 56 53 17/32 56 7/8 57 1/2 Low . . . . . 51 1/8 30 27/32 43 5/16 39 1/16 41 9/16 43 40 3/4 45 13/16 Average shares outstanding for diluted EPS (in millions) . . 1,491 1,485 1,486 1,488 1,484 1,490 1,483 1,489 Average shares outstanding for basic EPS (in millions) . . 1,472 1,466 1,470 1,467 1,469 1,469 1,470 1,470 The Company's common shares are listed and principally traded on the New York Stock Exchange. The approximate number of holders of record of common shares as of December 31, 1999, was 46,000. SEGMENT INFORMATION Schering-Plough is a worldwide research-based pharmaceutical company engaged in the discovery, development, manufacturing and marketing of pharmaceutical products. Discovery and development efforts target the field of human health. However, application in the field of animal health can result from these efforts. The Company views animal health applications as a means to maximize the return on investments in discovery and development. The Company operates primarily in the prescription pharmaceutical marketplace. However, the Company historically has sought regulatory approval to switch prescription products to over-the-counter (OTC) status as a means of extending a product's life cycle. In this way, the OTC marketplace is yet another means of maximizing the return on investments in discovery and development. Effective January 1, 1999, the Company changed the structure of its internal organization to reflect this focus on pharmaceutical research and development. As a result, the Company reports as one segment. Previously, the Company was organized into two business units: pharmaceuticals and health care. Prior year information has been restated on this basis. Net Sales by Major Therapeutic Category 1999 1998 1997 Allergy & Respiratory . . . . $3,850 $3,375 $2,708 Anti-infective & Anticancer . 1,738 1,263 1,156 Dermatologicals . . . . . . . 682 619 571 Cardiovasculars . . . . . . . 673 750 637 Other Pharmaceuticals . . . . 792 688 649 Animal Health . . . . . . . . 678 647 389 Foot Care . . . . . . . . . . 348 336 300 OTC . . . . . . . . . . . . . 221 218 220 Sun Care. . . . . . . . . . . 194 181 148 Consolidated net sales. . . . $9,176 $8,077 $6,778 Consolidated income before income taxes. . $2,795 $2,326 $1,913 The Company operates in more than 40 countries outside the United States. Sales outside the United States comprised 36 percent, 37 percent and 39 percent of consolidated net sales in 1999, 1998 and 1997, respectively. No single foreign country accounted for more than 5 percent of consolidated net sales during the past three years. Net Sales by Geographic Area 1999 1998 1997 United States. . . . . . . . . . . . $5,835 $5,113 $4,151 Europe and Canada. . . . . . . . . . 2,157 1,889 1,620 Latin America. . . . . . . . . . . . 614 578 453 Pacific Area and Asia. . . . . . . . 570 497 554 Consolidated net sales . . . . . . . $9,176 $8,077 $6,778 Net sales are presented in the geographic area in which the Company's customers are located. During 1999 and 1998, 12 percent and 11 percent, respectively, of consolidated net sales were made to McKesson HBOC, Inc., a major pharmaceutical and health care products distributor. During 1997, no single customer accounted for more than 10 percent of consolidated net sales. Long-lived Assets by Geographic Location 1999 1998 1997 United States. . . . . . . . . . . . $1,738 $1,516 $1,348 Ireland. . . . . . . . . . . . . . . 340 338 340 Singapore. . . . . . . . . . . . . . 260 268 271 Puerto Rico. . . . . . . . . . . . . 173 160 161 Other . . . . . . . . . . . . . . . 621 598 606 Total. . . . . . . . . . . . . . . . $3,132 $2,880 $2,726 Long-lived assets shown by geographic location are primarily property. REPORT BY MANAGEMENT Management is responsible for the preparation and the integrity of the accompanying financial statements. These statements are prepared in accordance with generally accepted accounting principles and require the use of estimates and assumptions that affect the reported amounts of assets, liabilities, sales and expenses. In management's opinion, the consolidated financial statements present fairly the Company's results of operations, financial position and cash flows. All financial information in this Annual Report is consistent with the financial statements. The Company maintains, and management relies on, a system of internal accounting controls and related policies and procedures that provide reasonable assurance of the integrity and reliability of the financial statements. The system provides, at appropriate cost and within the inherent limitations of all internal control systems, that transactions are executed in accordance with management's authorization, are properly recorded and reported in the financial statements and that assets are safeguarded. The Company's internal accounting control system provides for careful selection and training of supervisory and management personnel and requires appropriate segregation of responsibilities and delegation of authority. In addition, the Company maintains a corporate code of conduct for purposes of determining possible conflicts of interest, compliance with laws and confidentiality of proprietary information. The Company's independent auditors, Deloitte & Touche LLP, audit the annual consolidated financial statements. They evaluate the Company's internal accounting controls and perform tests of procedures and accounting records to enable them to express their opinion on the fairness of these statements. In addition, the Company has an internal audit function that regularly performs audits using programs designed to test compliance with Company policies and procedures, and to verify the adequacy of internal accounting controls and other financial policies. The internal auditors' and independent auditors' recommendations concerning the Company's system of internal accounting controls have been considered and appropriate action has been taken with respect to those recommendations. The Finance, Compliance and Audit Committee of the Board of Directors consists solely of non-employee directors. The Committee meets periodically with management, the internal auditors and the independent auditors to review audit results, financial reporting, internal accounting controls and other financial matters. Both the independent auditors and internal auditors have full and free access to the Committee. /S/ Richard Jay Kogan /S/Jack L. Wyszomierski /S/Thomas H. Kelly Chairman Executive Vice President Vice President of the Board and and Chief Financial and Controller Chief Executive Officer Officer INDEPENDENT AUDITORS' REPORT DELOITTE & TOUCHE Schering-Plough Corporation, its Directors and Shareholders: We have audited the accompanying consolidated balance sheets of Schering-Plough Corporation and subsidiaries as of December 31, 1999 and 1998, and the related consolidated statements of income, shareholders' equity and cash flows for each of the three years in the period ended December 31, 1999. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with generally accepted auditing standards. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of Schering-Plough Corporation and subsidiaries at December 31, 1999 and 1998, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 1999, in conformity with generally accepted accounting principles. /S/DELOITTE & TOUCHE LLP Parsippany, New Jersey February 11, 2000 SCHERING-PLOUGH CORPORATION AND SUBSIDIARIES SIX-YEAR SELECTED FINANCIAL & STATISTICAL DATA (Dollars in millions, except per share figures) 1999 1998 1997 1996 1995 1994 Operating Results Net Sales . . . . . . . . . . . $9,176 $8,077 $6,778 $5,656 $5,104 $4,537 Income before income taxes. . . . 2,795 2,326 1,913 1,606 1,395 1,227 Income from continuing operations 2,110 1,756 1,444 1,213 1,053 926 Discontinued operations . . . . . - - - - (166) (4) Net income. . . . . . . . . . . . 2,110 1,756 1,444 1,213 887 922 Diluted earnings per common share from continuing operations . . 1.42 1.18 .97 .82 .70 .60 Diluted earnings per common share 1.42 1.18 .97 .82 .59 .60 Basic earnings per common share from continuing operations. . . 1.44 1.20 .98 .82 .71 .61 Discontinued operations . . . . - - - - (.11) (.01) Basic earnings per common share . 1.44 1.20 .98 .82 .60 .60 Investments Research and development. . . . .$1,191 $1,007 $ 847 $ 723 $ 657 $ 610 Capital expenditures. . . . . . . 543 389 405 336 304 286 Financial Condition Property, net . . . . . . . . . .$2,939 $2,675 $2,526 $2,246 $2,099 $2,082 Total assets. . . . . . . . . . . 9,375 7,840 6,507 5,398 4,665 4,326 Long-term debt. . . . . . . . . . 6 4 46 46 87 186 Shareholders' equity. . . . . . . 5,165 4,002 2,821 2,060 1,623 1,574 Net book value per common share . 3.51 2.72 1.93 1.41 1.11 1.06 Financial Statistics Income from continuing operations as a percent of sales. . . . . . 23.0% 21.7% 21.3% 21.4% 20.6% 20.4% Net income as a percent of sales. 23.0% 21.7% 21.3% 21.4% 17.4% 20.3% Return on average shareholders' equity. . . . . . . . . . . . . 46.0% 51.5% 59.2% 65.9% 55.5% 58.4% Effective tax rate. . . . . . . . 24.5% 24.5% 24.5% 24.5% 24.5% 24.5% Other Data Cash dividends per common share .$ .485 $ .425 $ .368 $ .32 $ .281 $ .248 Cash dividends on common shares . 716 627 542 474 416 379 Depreciation and amortization . . 264 238 200 173 157 145 Number of employees . . . . . . .26,500 25,100 22,700 20,600 20,100 20,000 Average shares outstanding for diluted earnings per common share (in millions) . . . . . . 1,486 1,488 1,480 1,487 1,498 1,547 Average shares outstanding for basic earnings per common share (in millions) . . . . . . 1,470 1,468 1,464 1,471 1,479 1,530 Common shares outstanding at year-end (in millions) . . . 1,472 1,472 1,465 1,461 1,457 1,488