<SEC-DOCUMENT>0000950123-03-000781-index.html : 20030131
<SEC-HEADER>0000950123-03-000781.hdr.sgml : 20030131
<ACCEPTANCE-DATETIME>20030131093031
ACCESSION NUMBER:		0000950123-03-000781
CONFORMED SUBMISSION TYPE:	8-K/A
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20030128
ITEM INFORMATION:		Financial statements and exhibits
FILED AS OF DATE:		20030131

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:		8-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03305
		FILM NUMBER:		03533254

	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>8-K/A
<SEQUENCE>1
<FILENAME>y83035a1e8vkza.txt
<DESCRIPTION>AMENDMENT #1 TO 1/28/03 8-K: MERCK & CO., INC.
<TEXT>
Document 1 - file: y83035a1e8vkza.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>3
<FILENAME>y83035a1exv99.txt
<DESCRIPTION>CERTAIN SUPPLEMENTAL INFO TO SUPPLEMENTAL INFO
<TEXT>
Document 3 - file: y83035a1exv99.txt

</DOCUMENT>
</SEC-DOCUMENT>