<SEC-DOCUMENT>0000950123-07-006992-index.html : 20070508
<SEC-HEADER>0000950123-07-006992.hdr.sgml : 20070508
<ACCEPTANCE-DATETIME>20070508161929
ACCESSION NUMBER:		0000950123-07-006992
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20070331
FILED AS OF DATE:		20070508
DATE AS OF CHANGE:		20070508

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:		07828480

	BUSINESS ADDRESS:	
		STREET 1:		ONE MERCK DR
		STREET 2:		P O BOX 100
		CITY:			WHITEHOUSE STATION
		STATE:			NJ
		ZIP:			08889-0100
		BUSINESS PHONE:		9084231688

	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>y34474e10vq.htm
<DESCRIPTION>FORM 10-Q
<TEXT>
Document 1 - file: y34474e10vq.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-12
<SEQUENCE>2
<FILENAME>y34474exv12.htm
<DESCRIPTION>EX-12: COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
<TEXT>
Document 2 - file: y34474exv12.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>3
<FILENAME>y34474exv31w1.htm
<DESCRIPTION>EX-31.1: CERTIFICATION
<TEXT>
Document 3 - file: y34474exv31w1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>4
<FILENAME>y34474exv31w2.htm
<DESCRIPTION>EX-31.2: CERTIFICATION
<TEXT>
Document 4 - file: y34474exv31w2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>5
<FILENAME>y34474exv32w1.htm
<DESCRIPTION>EX-32.1: CERTIFICATION
<TEXT>
Document 5 - file: y34474exv32w1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.2
<SEQUENCE>6
<FILENAME>y34474exv32w2.htm
<DESCRIPTION>EX-32.2: CERTIFICATION
<TEXT>
Document 6 - file: y34474exv32w2.htm

</DOCUMENT>
</SEC-DOCUMENT>