424B3 1 0001.txt PRICING SUPPLEMENT NO. 1 Pricing Supplement No. 1 Filing under Rule 424(b)(3) Dated November 20, 2000 Registration File No. 333-77569 (to Prospectus dated August 3, 2000 and Prospectus Supplement dated September 7, 2000) Merck & Co., Inc. Medium-Term Notes, Series D Floating Rate Notes Principal Amount $35,000,000 Trade Date: November 14, 2000 Settlement Date: November 27, 2000 Stated Maturity: November 27, 2040 Interest Rate Basis: 3-Month LIBOR Spread: Minus 45 basis points LIBOR Interest Determination Date: Two New York Business Days prior to each Interest Payment Date Interest Payment Dates: November 27, February 27, May 27, August 27, commencing on February 27, 2001 Business Days: New York Issue Price: 100.00% Agent's Commission: 1.00% Net Proceeds to Company: 99.00% Calculation Agent: U.S. Bank Trust National Association CUSIP: 58933NAM1 Optional Repayment Dates: The notes are redeemable at the option of the holder on the Optional Repayment Dates (subject to prior notice) and at the prices as shown below: Optional Repayment Dates Price ------------------------ ----- November 27, 2010 99.00% November 27, 2013 99.25% November 27, 2016 99.50% November 27, 2019 99.75% November 27, 2022 and 100.00% every 3 years thereafter until maturity Terms not defined above have the meanings given to such terms in the accompanying prospectus supplement. MORGAN STANLEY DEAN WITTER