SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) January 28, 2003 ------------------------------- MERCK & CO., Inc. ------------------------------------------------------------------------------- (Exact Name of Registrant as Specified in Its Charter) New Jersey ------------------------------------------------------------------------------- (State or Other Jurisdiction of Incorporation) 1-3305 22-1109110 ----------------------------------- -------------------------------------- (Commission File Number) (I.R.S. Employer Identification No.) One Merck Drive, PO Box 100, Whitehouse Station, NJ 08889-0100 -------------------------------------------------------------------------------- (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code (908) 423-1000 ------------------------------ Amendment No. 1 The Registrant hereby amends its Current Report on Form 8-K, dated January 28, 2003, and furnished to the Securities and Exchange Commission on January 28, 2003, for the purpose of replacing within exhibit 99(b), the following two pages: (i) 2002 Fourth Quarter Other Financial Disclosures, and (ii) Full Year 2002 over 2001 Net Product Sales Detail. This replacement is being made in order to revise (i) the total number of Medco Health subscriptions for 2002 from 549 million to 548 million and (ii) the amount of 2002 full year foreign Trusopt/Cosopt sales from $170 million to $240 million, and the associated percentage change from (23)% to 9%. Item 7. Financial Statements and Exhibits. ------------------------------------------ (c) Exhibits -------- Exhibit 99 Certain supplemental information Filed with related to supplemental information this document furnished on January 28, 2003 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 hereunto duly authorized. MERCK & CO., Inc. Date: January 31, 2003 By: /s/ Debra A. Bollwage ----------------------------------- DEBRA A. BOLLWAGE Assistant Secretary EXHIBIT INDEX ------------- Exhibit Number Description ------- ----------- 99 Certain supplemental information related to supplemental information furnished on January 28, 2003