EXHIBIT 21
MERCK & CO., INC. SUBSIDIARIES
AS OF 12/31/97
Each of the subsidiaries set forth below does business under the name
stated. A subsidiary of a subsidiary is indicated by indentation under the
immediate parent. All voting securities of the subsidiaries named are owned
directly or indirectly by the Company, except where otherwise indicated.
COUNTRY OR STATE
NAME OF INCORPORATION
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Chibret A/S Denmark
Hangzhou MSD Pharmaceutical Company Limited/1/ China
International Indemnity Ltd. Bermuda
Istituto Gentili S.p.A. Italy/Delaware
Johnson & Johnson--Merck Consumer Pharmaceuticals
Company/1/ New Jersey
Laboratorios Prosalud S.A. Peru
MCM Vaccine Co./1/ Pennsylvania
Merck and Company, Incorporated Delaware
Merck SH Inc. Delaware
Merck Capital Investment, Inc. Delaware
Merck Capital Resources, Inc. Delaware
MSD Technology, L.P./1/ Bermuda
Merck Finance Co., Inc. Delaware
Merck de Puerto Rico, Inc. Delaware
Merck Enterprises Canada, Ltd. Canada
Merck Foreign Sales Corporation Ltd. Bermuda
Merck Holdings, Inc. Delaware
Astra Merck, Inc./1/ Delaware
Chugai MSD Co., Ltd./1/ Japan
Frosst Laboratories, Inc. Delaware
Frosst Portuguesa--Produtos Farmaceuticos, Lda. Portugal
Merck-Medco Holdings II Corp. Delaware
Cloverleaf International Holdings S.A. Luxembourg
Coordinated Patient Care Scandinavia AS Norway
Medidoc AB Sweden
Coordination Medicale et Pharmaceutique, S.A. France
Merck Frosst Canada, Inc. Canada
Merck Sharp & Dohme (Australia) Pty. Limited Australia
AMRAD Pharmaceuticals Pty. Ltd./1/ Australia
Merck Sharp & Dohme B.V. Netherlands
Abello Farmacia, S.L./1/ Spain
Financiere MSD S.A.S. France
Chibret Pharmazeutische GmbH Germany
Laboratoires Jean-Paul Martin S.A.S./1/ France
Laboratoires Merck Sharp & Dohme
Chibret SNC France
Pasteur Merieux MSD Gestion S.A./1/ France
Pasteur Merieux MSD S.N.C./1/ France
Pasteur Merieux MSD A/S Denmark
Pasteur Merieux MSD GmbH Germany
Pasteur Merieux MSD Ltd. (UK) Great Britain
Pasteur Merieux MSD Ltd.
(Ireland) Ireland
COUNTRY OR STATE
NAME OF INCORPORATION
- ---- ----------------
Pasteur Merieux MSD N.V. Belgium
Pasteur Merieux MSD S.A. Spain
Pasteur Merieux MSD S.p.A. Italy
Pasteur Vaccins S.A. France
Laboratorios Chibret, S.A. Spain
Merck Sharp & Dohme GmbH Austria
Merck Sharp & Dohme (Italia) S.p.A. Italy
Abiogen Farma S.p.A. Italy
Istituto Di Richerche Di Biologia Molecolare S.p.A./1/ Italy
MSD (Proprietary) Limited South Africa
MSD Sharp & Dohme GmbH Germany
Dieckmann Arzneimittel GmbH Germany
Woelm Pharma GmbH & Co./1/ Germany
MSD Chibropharm GmbH Germany
MSD Unterstutzungskasse GmbH Germany
Varipharm Arzneimittel GmbH Germany
Merck Sharp & Dohme Chibret A.G. Switzerland
Merck Sharp & Dohme (Holdings) Limited Great Britain
Charles E. Frosst (U.K.) Limited Great Britain
Merck Sharp & Dohme Limited Great Britain
Johnson & Johnson MSD Consumer Pharmaceuticals/1/ Great Britian
Merck Sharp & Dohme Finance Europe Great Britain
Thomas Morson & Son Limited Great Britain
Merck Sharp & Dohme IDEA, Inc. Switzerland
Merck Sharp & Dohme (Sweden) A.B. Sweden
Merck Sharp & Dohme (Israel--1996) Company Ltd. Israel
Merck Sharp & Dohme Trading & Service Limited Liability
Company Hungary
MSD Ireland (Holdings) S.A. Luxembourg
Fabrica de Productos Quimicos y Farmaceuticos Abello,
S.A. Spain
Fregenal Holdings S.A. Panama
Frosst Iberica, S.A. Spain
Laboratorios Quimico-Farmaceuticos Chibret, Lda. Portugal
Merck Sharp & Dohme de Espana, S.A. Spain
Merck Sharp & Dohme, Limitada Portugal
MSD Finance, B.V. Netherlands
MSD Overseas Manufacturing Co. Bermuda
Blue Jay Investments C.V. Netherlands
Merck Sharp & Dohme (Singapore) Ltd. Bermuda
MSD Ireland (Investment) Ltd. Bermuda
MSD Overseas Manufacturing Co. (Ireland) Ireland
Crosswinds B.V. Netherlands
Merck Sharp & Dohme (Ireland) Ltd. Bermuda
Neopharmed S.p.A. Italy
Ruskin Limited Bermuda
MSD (Norge) A/S Norway
Suomen MSD Oy Finland
Kiinteisto Oy Irmelinpesa/1/ Finland
Kiinteisto Oy Viistotie 11 Finland
Merck Sharp & Dohme de Venezuela, C.A. Venezuela
Merck Sharp & Dohme Holdings de Mexico, S.A. de C.V. Mexico
2
COUNTRY OR STATE
NAME OF INCORPORATION
- ---- ------------------
Merck Sharp & Dohme de Mexico, S.A. de C.V. Mexico
Merck Sharp & Dohme (I.A.) Corp. Delaware
Merck Sharp & Dohme (Argentina) Inc. Delaware
MSD Korea Ltd. Korea/Delaware
Merck Sharp Dohme Ilaclari Limited Sirketi Turkey
Merck Sharp & Dohme Industrial e Exportadora Ltda. Brazil
Merck Sharp & Dohme Farmaceutica e Veterinaria Ltda. Brazil
Prodome Quimica e Farmaceutica Ltda.1 Brazil
Merck Sharp & Dohme (International) Limited Bermuda
Merck Sharp & Dohme (Asia) Limited Hong Kong
Merck Sharp & Dohme (China) Limited Hong Kong
Merck Sharp & Dohme S.A. France
Merck Sharp & Dohme International Services B.V. Netherlands
Merck Sharp & Dohme--Lebanon S.A.L. Lebanon
Merck Sharp & Dohme L.L.C. Russian Federation
Merck Sharp & Dohme (Middle East) Limited Cyprus
Merck Sharp & Dohme of Pakistan Limited Pakistan
Merck Sharp & Dohme Quimica de Puerto Rico, Inc. Delaware
Merck Sharp & Dohme S.A.R.L. Morocco
Merck Ventures, Inc. Delaware
MSD Chimie S.A France
MSD Lakemedel (Scandinavia) Aktiebolog Sweden
Prosalud Peruana S.A. Peru
TELERx Marketing Inc. Pennsylvania
Merck Investment Co., Inc. Delaware
Merck-Medco Managed Care, L.L.C. Delaware
CM Delaware Corporation Delaware
DM-MG, L.L.C. Delaware
MCCO Corp. New Jersey
MCCO, L.L.C. New Jersey
Medco Containment Insurance Company of New Jersey New Jersey
Medco Containment Insurance Company of New York New York
Medco Containment Life Insurance Company Pennsylvania
Medco MM Corp. New Jersey
Merck-Medco Managed Care of California, Inc. California
Merck-Medco Rx Services of Florida No. 2, L.C. Florida
Merck-Medco Rx Services of Florida, L.C. Florida
Merck-Medco Rx Services of Massachusetts, L.L.C. Massachusetts
Merck-Medco Rx Services of Nevada, Inc. Nevada
Merck-Medco Rx Services of New Jersey, L.L.C. New Jersey
Merck-Medco Rx Services of New York, L.L.C. New York
Merck-Medco Rx Services of Ohio, Ltd. Ohio
Merck-Medco Rx Services of Ohio No. 2, Ltd. Ohio
Merck-Medco Rx Services of Oklahoma, L.L.C. Oklahoma
Merck-Medco Rx Services of Pennsylvania, L.L.C. Pennsylvania
Merck-Medco Rx Services of Pennsylvania No. 2, L.L.C. Pennsylvania
Merck-Medco Rx Services of Texas, L.L.C. Texas
Merck-Medco Rx Services of Virginia, L.L.C. Virginia
Merck-Medco Rx Services of Washington, Inc. Washington
Mergerco Delaware No. 7, L.L.C. Delaware
Mergerco Delaware No. 10, L.L.C. Delaware
3
COUNTRY OR STATE
NAME OF INCORPORATION
- ---- ----------------
MW Holdings, L.L.C. Delaware
NJRE, L.L.C. New Jersey
NRx Federal Corp. Delaware
National Rx Services, Inc. California
National Rx Services, Inc. of Missouri Missouri
National Rx Services No. 3, Inc. of Ohio Ohio
New York PAID Independent Practice Association, L.L.C. New York
Paid Direct, Inc. Delaware
PAID Prescriptions, L.L.C. Nevada
Replacement Distribution Center, Inc. Ohio
Systemed, L.L.C. Delaware
American Medical Outcomes Repository, Inc. Delaware
Systemed Pharmacy of Iowa, L.L.C. Delaware
Systemed Pharmacy of Ohio, Ltd. Ohio
Merck Resource Management, Inc. Delaware
Merck Sharp & Dohme (Europe) Inc. Delaware
Merck Sharp & Dohme Industria Quimica e Veterinaria Limitada Brazil
Merck Sharp & Dohme (New Zealand) Limited New Zealand
Merck Sharp & Dohme Overseas Finance N.V. Neth. Antilles
Merck Sharp & Dohme (Panama) S.A. Panama
Merck Sharp & Dohme Peru S.C. Peru
Merck Sharp & Dohme (Philippines) Inc. Philippines
Merial Limited/LLC/1/ Great Britain/Delaware
British United Turkeys Limited/1/ Great Britain
Turkey Research & Development Limited/1/ Great Britain
MI (FDL) Holdings, Inc. Delaware
MSD International Holdings, Inc. Delaware
Banyu Pharmaceutical Company, Ltd./1/ Japan
Banyu-A.S.C. Co., Ltd. Japan
Nippon Merck-Banyu Co., Ltd. Japan
MSD (Japan) Co., Ltd. Japan
The Du Pont Merck Pharmaceutical Company/1/ Delaware
The O'Hare Group, Inc./1/ Delaware
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/1/ own less than 100%
4