UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) April 21, 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 ----------------------------- Item 7. Financial Statements and Exhibits ----------------------------------------- (c) Exhibits -------- Exhibit 99.1 Press release issued April 21, 2003 Filed with regarding earnings for first quarter 2003 this document Exhibit 99.2 Certain supplemental information Filed with not included in the press release this document Item 9. Regulation FD Disclosure -------------------------------- Incorporated by reference is a press release issued by the Registrant on April 21, 2003, regarding earnings for the first quarter 2003, attached as Exhibit 99.1. Also incorporated by reference is certain supplemental information not included in the press release, attached as Exhibit 99.2. This information is being furnished pursuant to Item 12 - Results of Operations and Financial Condition, of Form 8-K and is being presented under Item 9 of Form 8-K in accordance with interim guidance issued by the Securities and Exchange Commission in Release Nos. 33-8216 and 34-47583. This information is not deemed to be "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934 and is not incorporated by reference into any Securities Act registration statements. 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: April 21, 2003 By: /s/ Debra A. Bollwage ---------------------------- DEBRA A. BOLLWAGE Assistant Secretary EXHIBIT INDEX ------------- Exhibit Number Description ------ ----------- 99.1 Press release issued April 21, 2003 regarding earnings for first quarter 2003 99.2 Certain supplemental information not included in the press release