<SEC-DOCUMENT>0001193125-09-037478-index.html : 20090225
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<ACCEPTANCE-DATETIME>20090225165516
ACCESSION NUMBER:		0001193125-09-037478
CONFORMED SUBMISSION TYPE:	PRE 14A
PUBLIC DOCUMENT COUNT:		20
CONFORMED PERIOD OF REPORT:	20090428
FILED AS OF DATE:		20090225
DATE AS OF CHANGE:		20090225

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:		PRE 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03305
		FILM NUMBER:		09634449

	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
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<TYPE>PRE 14A
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<FILENAME>dpre14a.htm
<DESCRIPTION>PRELIMINARY PROXY STATEMENT
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Document 1 - file: dpre14a.htm

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Document 3 - file: g74810g03u76.jpg

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Document 4 - file: g74810g05y69.jpg

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Document 5 - file: g74810g06t72.jpg

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Document 6 - file: g74810g17g00.jpg

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Document 7 - file: g74810g21n51.jpg

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Document 8 - file: g74810g22m48.jpg

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Document 9 - file: g74810g25o46.jpg

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Document 10 - file: g74810g27z25.jpg

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Document 11 - file: g74810g29l98.jpg

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Document 12 - file: g74810g32m12.jpg

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Document 13 - file: g74810g33o97.jpg

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Document 14 - file: g74810g38g16.jpg

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Document 15 - file: g74810g41r53.jpg

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Document 16 - file: g74810g42n65.jpg

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Document 18 - file: g74810g72m12.jpg

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Document 19 - file: g74810g78e04.jpg

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Document 20 - file: g74810g91a68.jpg

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Document 21 - file: g74810g93u87.jpg

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