<SEC-DOCUMENT>0000891836-01-500137-index.html : 20010628

<SEC-HEADER>0000891836-01-500137.hdr.sgml : 20010628

ACCESSION NUMBER:		0000891836-01-500137

CONFORMED SUBMISSION TYPE:	424B3

PUBLIC DOCUMENT COUNT:		1

FILED AS OF DATE:		20010627


FILER:


	COMPANY DATA:	

		COMPANY CONFORMED NAME:			MERCK & CO INC

		CENTRAL INDEX KEY:			0000064978

		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]

		IRS NUMBER:				221109110

		STATE OF INCORPORATION:			NJ

		FISCAL YEAR END:			1231


	FILING VALUES:

		FORM TYPE:		424B3

		SEC ACT:		

		SEC FILE NUMBER:	333-77569

		FILM NUMBER:		1668726


	BUSINESS ADDRESS:	

		STREET 1:		ONE MERCK DR

		STREET 2:		P O BOX 100

		CITY:			WHITEHOUSE STATION

		STATE:			NJ

		ZIP:			08889-0100

		BUSINESS PHONE:		9084234044


	MAIL ADDRESS:	

		STREET 1:		ONE MERCK DR

		STREET 2:		PO BOX 100 WS3AB-05

		CITY:			WHITEHOUSE STATION

		STATE:			NJ

		ZIP:			08889-0100

</SEC-HEADER>

<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>file001.txt
<DESCRIPTION>PRICING SUPPLEMENT NO. 5
<TEXT>
Document 1 - file: file001.txt

</DOCUMENT>
</SEC-DOCUMENT>