<SEC-DOCUMENT>0001193125-09-135182-index.html : 20090623
<SEC-HEADER>0001193125-09-135182.hdr.sgml : 20090623
<ACCEPTANCE-DATETIME>20090622215219
ACCESSION NUMBER:		0001193125-09-135182
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20090623
DATE AS OF CHANGE:		20090622
EFFECTIVENESS DATE:		20090623

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03305
		FILM NUMBER:		09904452

	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>DEFA14A
<SEQUENCE>1
<FILENAME>ddefa14a.htm
<DESCRIPTION>SOLICITING MATERIAL PURSUANT TO 240.14A-12
<TEXT>
Document 1 - file: ddefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g23807image002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g23807image002.jpg

</DOCUMENT>
</SEC-DOCUMENT>