Schering-Plough Corporation and Subsidiaries
Subsidiaries of Registrant
As of December 31, 1997
Exhibit 21
State or Country
of Incorporation
Subsidiaries of Registrant or Organization
AESCA Chemisch Pharmazeutische Fabrik GmbH Austria
American Image Productions, Inc. Tennessee
American Scientific Laboratories, Inc. Delaware
Ark Products Limited United Kingdom
Avondale Chemical Co., Ltd. Ireland
Beneficiadora e Industrializadora S.A. de C.V. Mexico
Canji, Inc. Delaware
Chemibiotic (Ireland) Limited Ireland
Coopers Animal Health Limited United Kingdom
Coopers Brasil Ltda. Brazil
Coopers Uruguay S.A. Uruguay
Dashtag United Kingdom
Desarrollos Farmaceuticos Y Cosmeticos S.A. Spain
DNAX Research Institute of Molecular & Cellular Biology, Inc. California
Douglas Industries, Inc. Delaware
Dr. Scholl's Foot Comfort Shops, Inc. Delaware
Essex (Taiwan) Ltd. Taiwan
Essex Chemie A.G. Switzerland
Essex Farmaceutica S. A. Colombia
Essex Italia S.p.A. Italy
Essex Pharma GmbH Germany
Essex Pharmaceuticals, Inc. Philippines
Essexfarm, S. A. Ecuador
Farmaceutica Essex, S. A. Spain
Garden Insurance Co., Ltd. Bermuda
Integrated Disease Management, Inc. Delaware
Integrated Therapeutics Group, Inc. Delaware
Key Pharma S.A. Equador
Key Pharma, A. G. Switzerland
Key Pharma, S.A. Spain
Key Pharmaceuticals Export Co., Inc. U.S. Virgin Islands
Key Pharmaceuticals, Inc. Florida
Kirby Medical Products Cia Ltda Chile
Kirby-Warrick Pharmaceuticals Limited United Kingdom
Laboratorio Essex, C.A. Venezuela
Laboratorio S.P. White's, C.A. Venezuela
Laboratorios Essex S.A. Argentina
Loftus Bryan Chemicals Limited Ireland
Macol, S.A. Colombia
Mallinckrodt Veterinary BV Netherlands
Mallinckrodt Veterinary Colombia Holdings, Inc. Panama
Mallinckrodt Veterinary International Colombia Holdings, Inc. Panama
Mallinckrodt Veterinary Limited Ireland
Mallinckrodt Veterinary Limited Thailand
Mallinckrodt Veterinary Ltd. Hong Kong
Mallinckrodt Veterinary NV/SA Belgium
Mallinckrodt Veterinary Operations Sdn Bhd Malaysia
Mallinckrodt Veterinary Pte. Ltd. Singapore
Mallinckrodt Veterinary Sdn Bhd Malaysia
Mallinckrodt Veterinary, Inc. Canada
Med-Nim (Proprietary) Limited South Africa
MedAdvisor, Inc. Delaware
P.T. Schering-Plough Indonesia Indonesia
Pharmaceutical Supply Corporation Delaware
Pharmaco(Canada) Inc. Canada
Pharmaco, Inc. Delaware
Pitman-Moore Animal Health Limited New Zealand
Plough (Australia) Pty. Limited Australia
Plough (UK) Limited United Kingdom
Plough Benelux S.A. Belgium
Plough Broadcasting Co., Inc. Delaware
Plough Consumer Products (Asia) Ltd. Hong Kong
Plough Consumer Products (Philippines) Inc. Philippines
Plough de Venezuela, C.A. Venezuela
Plough Export, Inc. Tennessee
Plough Farma, Lda. Portugal
Plough France S.A. France
Plough Hellas Limited Greece
Plough Laboratories, Inc. Tennessee
Plough S.p.A. Italy
Plough Services AG Switzerland
PPL, Inc. Tennessee
Pro Medica AB Sweden
Professional Pharmaceutical Corporation Delaware
Professional Vaccine Corporation Delaware
S-P RIL Limited United Kingdom
S-P Veterinary (UK) Limited United Kingdom
S-P Veterinary Holdings Limited United Kingdom
S-P Veterinary Limited United Kingdom
Scheramex S.A. de C.V. Mexico
Scherico, Ltd. Switzerland
Schering Canada Inc. Canada
Schering Corporation New Jersey
Schering Institutional Sales Corporation Delaware
Schering Laboratories Advertising Inc. Delaware
Schering Plough Korea South Korea
Schering Sales Corporation Delaware
Schering Sales Management, Inc. Nevada
Schering Transamerica Corporation New Jersey
Schering-Plough (Bray) Limited Ireland
Schering-Plough France
Schering-Plough Grenada Limited Grenada
Schering-Plough (Proprietary) Limited South Africa
Schering-Plough A/S Denmark
Schering-Plough A/S Norway
Schering-Plough AB Sweden
Schering-Plough Animal Health Limited Australia
Schering-Plough Animal Health Limited New Zealand
Schering-Plough Animal Health Sales Corporation Delaware
Schering-Plough Animal Health, Inc. Philippines
Schering-Plough Animal-Health Corporation Delaware
Schering-Plough B.V. Netherlands
Schering-Plough, C.A. Venezuela
Schering-Plough Central East A.G. Switzerland
Schering-Plough (China) Limited Bermuda
Schering-Plough Compania Limitada Chile
Schering-Plough Coordination Center N.V./S.A. Belgium
Schering-Plough Corp., U.S.A. Delaware
Schering-Plough Corporation New Jersey
Schering-Plough Corporation Philippines
Schering-Plough del Caribe, Inc. New Jersey
Schering-Plough del Ecuador, S.A. Ecuador
Schering-Plough del Peru S.A. Peru
Schering-Plough External Affairs, Inc. Delaware
Schering-Plough Farma Lda. Portugal
Schering-Plough Farmaceutica Ltda. Brazil
Schering-Plough HealthCare Holding Company Delaware
Schering-Plough HealthCare Products Advertising Corp. Tennessee
Schering-Plough HealthCare Products Canada, Inc. Canada
Schering-Plough HealthCare Products Sales Corporation California
Schering-Plough HealthCare Products, Inc. Delaware
Schering-Plough Holdings France, SAS France
Schering-Plough Holdings Limited United Kingdom
Schering-Plough II - Veterinaria, Lda. Portugal
Schering-Plough INT Limited United Kingdom
Schering-Plough International, Inc. Delaware
Schering-Plough Investment Co., Inc. Delaware
Schering-Plough Investments Limited Delaware
Schering-Plough Kabushiki Kaisha Japan
Schering-Plough Labo N.V. Belgium
Schering-Plough Legislative Resources, L.L.C. Delaware
Schering-Plough Limited Iran
Schering-Plough Limited Taiwan
Schering-Plough Limited Thailand
Schering-Plough Limited United Kingdom
Schering-Plough Ltd. Switzerland
Schering-Plough N.V./S.A. Belgium
Schering-Plough Overseas Limited Delaware
Schering-Plough OY Finland
Schering-Plough Pharmaceutical Industrial and Commercial S.A. Greece
Schering-Plough Products, Inc. Delaware
Schering-Plough Pty. Limited Australia
Schering-Plough Real Estate Co., Inc. Delaware
Schering-Plough Real Property Holdings, Inc. Delaware
Schering-Plough Research Institute Delaware
Schering-Plough S.A. Paraguay
Schering-Plough S.A. Argentina
Schering-Plough S.A. Colombia
Schering-Plough S.A. Panama
Schering-Plough, S.A. Spain
Schering-Plough S.A. Uruguay
Schering-Plough S.A. de C.V. Mexico
Schering-Plough S.p.A. Italy
Schering-Plough Sante Animale France
Schering-Plough Sdn. Bhd. Malaysia
Schering-Plough Tibbi Urunler Ticaret, A.S. Turkey
Schering-Plough Veterinaire France
Schering-Plough Veterinaire, S.A. de C.V. Mexico
Schering-Plough Veterinary Asia, Inc. Delaware
Schering-Plough Veterinary Corporation Nevada
Schering-Plough Veterinary Operations, Inc. Delaware
Schering-Plough Veterinary S.A. Greece
Sentipharm A.G. Switzerland
Shanghai Schering-Plough Pharmaceutical Company, Ltd. China
SOL Limited Bermuda
SP Biotech, S.A. Spain
SP HealthCare Products Corporation Delaware
SP Neurotech, S.A. Spain
Suntan Sensations, Inc. California
Syntro Corporation Delaware
Syntro Zeon, LC Kansas
SyntroVenture Corporation Kansas
SyntroVet Incorporated Kansas
Tasman Vaccine Laboratory (UK) Limited United Kingdom
Technobiotic Limited Australia
The Coppertone Corporation Florida
W-J Liquidating Corp. Delaware
Warrick Pharmaceuticals Corporation Delaware
Warrick Pharmaceuticals Limited United Kingdom
Werthenstein Chemie A.G. Switzerland
White Laboratories Ltd. United Kingdom
White Laboratories of Canada Limited Canada
White Laboratories, Inc. New Jersey