<SEC-DOCUMENT>0000950123-01-507708-index.html : 20011101

<SEC-HEADER>0000950123-01-507708.hdr.sgml : 20011101

ACCESSION NUMBER:		0000950123-01-507708

CONFORMED SUBMISSION TYPE:	S-3

PUBLIC DOCUMENT COUNT:		4

REFERENCES 429:			gov.sec.edgar.dataobjects.object.PDSubFN429Data@b0ac8930

FILED AS OF DATE:		20011031


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:		S-3

		SEC ACT:		1933 Act

		SEC FILE NUMBER:	333-72546

		FILM NUMBER:		1771844


	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>S-3
<SEQUENCE>1
<FILENAME>y54033s-3.txt
<DESCRIPTION>MERCK & CO., INC.: ORIGINAL FILING ON FORM S-3
<TEXT>
Document 1 - file: y54033s-3.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5
<SEQUENCE>3
<FILENAME>y54033ex5.txt
<DESCRIPTION>OPINION AND CONSENT OF KENNETH C. FRAZIER, ESQ.
<TEXT>
Document 3 - file: y54033ex5.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.A
<SEQUENCE>4
<FILENAME>y54033ex23-a.txt
<DESCRIPTION>CONSENT OF ARTHUR ANDERSEN LLP
<TEXT>
Document 4 - file: y54033ex23-a.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-25
<SEQUENCE>5
<FILENAME>y54033ex25.txt
<DESCRIPTION>FORM T-1
<TEXT>
Document 5 - file: y54033ex25.txt

</DOCUMENT>
</SEC-DOCUMENT>