<SEC-DOCUMENT>0000950123-00-006036-index.html : 20000920

<SEC-HEADER>0000950123-00-006036.hdr.sgml : 20000920

ACCESSION NUMBER:		0000950123-00-006036

CONFORMED SUBMISSION TYPE:	11-K

PUBLIC DOCUMENT COUNT:		1

CONFORMED PERIOD OF REPORT:	19991231

FILED AS OF DATE:		20000627


FILER:


	COMPANY DATA:	

		COMPANY CONFORMED NAME:			MERCK & CO INC

		CENTRAL INDEX KEY:			0000064978

		STANDARD INDUSTRIAL CLASSIFICATION:	 [2834
]
		IRS NUMBER:				221109110

		STATE OF INCORPORATION:			NJ

		FISCAL YEAR END:			1231

</COMPANY-DATA>


		FILING VALUES:

			FORM TYPE:		11-K

			SEC ACT:		

			SEC FILE NUMBER:	001-03305

			FILM NUMBER:		661161

</FILING-VALUES>


			BUSINESS ADDRESS:	

				STREET 1:		ONE MERCK DR

				STREET 2:		P O BOX 100

				CITY:			WHITEHOUSE STATION

				STATE:			NJ

				ZIP:			08889-0100

				BUSINESS PHONE:		9084234044

</BUSINESS-ADDRESS>


				MAIL ADDRESS:	

					STREET 1:		ONE MERCK DR

					STREET 2:		PO BOX 100 WS3AB-05

					CITY:			WHITEHOUSE STATION

					STATE:			NJ

					ZIP:			08889-0100

</MAIL-ADDRESS>

</FILER>

</SEC-HEADER>

<DOCUMENT>
<TYPE>11-K
<SEQUENCE>1
<FILENAME>e11-k.txt
<DESCRIPTION>MERCK-MEDCO MANAGED CARE 401 (K) SAVINGS PLAN
<TEXT>
Document 1 - file: e11-k.txt

</DOCUMENT>
</SEC-DOCUMENT>