<SEC-DOCUMENT>0000950123-03-012739-index.html : 20031114
<SEC-HEADER>0000950123-03-012739.hdr.sgml : 20031114
<ACCEPTANCE-DATETIME>20031114141735
ACCESSION NUMBER:		0000950123-03-012739
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		9
CONFORMED PERIOD OF REPORT:	20030930
FILED AS OF DATE:		20031114

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:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03305
		FILM NUMBER:		031003096

	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>10-Q
<SEQUENCE>1
<FILENAME>y91380e10vq.htm
<DESCRIPTION>MERCK & CO. INC.
<TEXT>
Document 1 - file: y91380e10vq.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>3
<FILENAME>y91380exv10w1.txt
<DESCRIPTION>MERCK & CO. DEFERRAL PROGRAM
<TEXT>
Document 3 - file: y91380exv10w1.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>4
<FILENAME>y91380exv10w2.txt
<DESCRIPTION>2001 INCENTIVE STOCK PLAN
<TEXT>
Document 4 - file: y91380exv10w2.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.3
<SEQUENCE>5
<FILENAME>y91380exv10w3.txt
<DESCRIPTION>PLAN FOR DEFERRED PAYMENT OF DIRECTORS
<TEXT>
Document 5 - file: y91380exv10w3.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-12
<SEQUENCE>6
<FILENAME>y91380exv12.htm
<DESCRIPTION>COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
<TEXT>
Document 6 - file: y91380exv12.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>7
<FILENAME>y91380exv31w1.txt
<DESCRIPTION>CERTIFICATION OF CEO
<TEXT>
Document 7 - file: y91380exv31w1.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>8
<FILENAME>y91380exv31w2.txt
<DESCRIPTION>CERTIFICATION OF CFO
<TEXT>
Document 8 - file: y91380exv31w2.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>9
<FILENAME>y91380exv32w1.txt
<DESCRIPTION>SECTION 1350 CERTIFICATION OF CEO
<TEXT>
Document 9 - file: y91380exv32w1.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.2
<SEQUENCE>10
<FILENAME>y91380exv32w2.txt
<DESCRIPTION>SECTION 1350 CERTIFICATION OF CFO
<TEXT>
Document 10 - file: y91380exv32w2.txt

</DOCUMENT>
</SEC-DOCUMENT>