<SEC-DOCUMENT>0000950123-05-000339-index.html : 20050113
<SEC-HEADER>0000950123-05-000339.hdr.sgml : 20050113
<ACCEPTANCE-DATETIME>20050113171126
ACCESSION NUMBER:		0000950123-05-000339
CONFORMED SUBMISSION TYPE:	424B2
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20050113
DATE AS OF CHANGE:		20050113

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:		424B2
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-118186
		FILM NUMBER:		05528750

	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>424B2
<SEQUENCE>1
<FILENAME>y04626b2e424b2.htm
<DESCRIPTION>FILED PURSUANT TO RULE 424B2
<TEXT>
Document 1 - file: y04626b2e424b2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>y04626b2y0462601.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: y04626b2y0462601.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>y04626b2e0462601.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: y04626b2e0462601.gif

</DOCUMENT>
</SEC-DOCUMENT>