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) October 22, 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 October 22, 2003 regarding earnings for third quarter 2003 Exhibit 99.2 Certain supplemental information not included in the press release Item 9. Regulation FD Disclosure; and Item 12. Results of Operations and Financial Condition. The following information is being furnished pursuant to both Item 9 and Item 12. Incorporated by reference is a press release issued by the Registrant on October 22, 2003, regarding earnings for the third 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 shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that Section, and is not incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing. 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: October 22, 2003 By: /s/ Debra A. Bollwage ----------------------- DEBRA A. BOLLWAGE Assistant Secretary EXHIBIT INDEX Exhibit Number Description ------ ----------- 99.1 Press release issued October 22, 2003 regarding earnings for third quarter 2003 99.2 Certain supplemental information not included in the press release