Exhibit 21
Schering-Plough Corporation and Subsidiaries
Subsidiaries of the Registrant
As of December 31, 2003
| 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 | |
| Aquaculture Holdings Limited (UK) | United Kingdom | |
| Aquaculture Vaccines (Ireland) Limited | Ireland | |
| Aquaculture Vaccines Limited (UK) | United Kingdom | |
| Ark Products Limited | United Kingdom | |
| AVL Holdings Limited (UK) | United Kingdom | |
| Avondale Chemical Co., Ltd. | Ireland | |
| Bain de Soleil Company, The | Delaware | |
| Beneficiadora e Industrializadora S.A. de C.V. | Mexico | |
| Brazil Holdings Ltd. | Bermuda | |
| Canji, Inc. | Delaware | |
| Chemibiotic (Ireland) Limited | Ireland | |
| Colombia Veterinary Holdings, Inc. | Panama | |
| Coopers Animal Health Limited | United Kingdom | |
| Coopers Brasil Ltda. | Brazil | |
| Coopers Uruguay S.A. | Uruguay | |
| Coppertone Corporation, The | Florida | |
| 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 | |
| Dunconor Limited | Ireland | |
| Essex (Taiwan) Ltd. | Taiwan | |
| Essex Chemie A.G. | Switzerland | |
| Essex Chemie International Foundation | Switzerland | |
| Essex Farmaceutica Portuguesa, Lda | Portugal | |
| 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 | |
| Giralda Investments Ltd. | Switzerland | |
| Global Animal Management Inc. | Delaware |
Schering-Plough Corporation and Subsidiaries
Subsidiaries of the Registrant
As of December 31, 2003
| State or Country | ||
| of Incorporation | ||
| Subsidiaries of Registrant | or Organization | |
| Integrated Therapeutics Group, Inc. | Delaware | |
| Key Pharma | Russia | |
| Key Pharma S.A. | Ecuador | |
| Key Pharma S.A. | Argentina | |
| 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 | |
| Kirby Pharmaceutical S.A. | Spain | |
| Laboratorio Essex, C.A. | Venezuela | |
| Laboratorio S.P. White’s, C.A. | Venezuela | |
| Laboratorios Essex S.A. | Argentina | |
| Laboratorios Kirby S.A. | Argentina | |
| Loftus Bryan Chemicals Limited | Ireland | |
| Macol, S.A. | Colombia | |
| MedAdvisor, Inc. | Delaware | |
| Medexa, S.A. de C.V. | Mexico | |
| Med-Nim (Proprietary) Limited | South Africa | |
| MSP Distribution Services (C) LLC | Nevada | |
| MSP Distribution Services (R) LLC | Nevada | |
| MSP Marketing Services (C) LLC | Nevada | |
| MSP Marketing Services (R) LLC | Nevada | |
| MSP Technology LLC | Delaware | |
| P.T. Schering-Plough Indonesia | Indonesia | |
| Pharmaceutical Supply Corporation | Delaware | |
| Pharmaco (Canada) Inc. | Canada | |
| Pharmaco, Inc. | Delaware | |
| 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) | Portugal | |
| Plough Hellas Limited | Greece | |
| Plough Laboratories, Inc. | Tennessee |
Schering-Plough Corporation and Subsidiaries
Subsidiaries of the Registrant
As of December 31, 2003
| State or Country | ||
| of Incorporation | ||
| Subsidiaries of Registrant | or Organization | |
| PPL, Inc. | Tennessee | |
| Pro Medica AB | Sweden | |
| Professional Pharmaceutical Corporation | Delaware | |
| 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 MSP Corporation | Nevada | |
| Schering MSP Pharmaceutical LP | Nevada | |
| Schering MyHealth Solutions, Inc. | Delaware | |
| Schering Plough (South Korea) | South Korea | |
| Schering Sales Corporation | Delaware | |
| Schering Sales Management, Inc. | Nevada | |
| Schering Transamerica Corporation | New Jersey | |
| Schering-Plough (Proprietary) Limited | South Africa | |
| Schering-Plough A/S | Norway | |
| Schering-Plough A/S | Denmark | |
| Schering-Plough AB | Sweden | |
| Schering-Plough Animal Health Limited | Ireland | |
| Schering-Plough Animal Health Limited | New Zealand | |
| Schering-Plough Animal Health Limited | Australia | |
| Schering-Plough Animal Health Limited | Thailand | |
| Schering-Plough Animal Health Operations Sdn Bhd | Malaysia | |
| Schering-Plough Animal Health Sdn Bhd | Malaysia | |
| Schering-Plough Animal Health, Inc. | Philippines | |
| Schering-Plough Animal-Health Corporation | Delaware | |
| Schering-Plough Bermuda Ltd. | Bermuda | |
| Schering-Plough B.V. | Netherlands | |
| Schering-Plough C.A. | Venezuela | |
| Schering-Plough Central East A.G. | Switzerland | |
| Schering-Plough China, Ltd. | 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 | Philippines | |
| Schering-Plough del Caribe, Inc. | New Jersey | |
| Schering-Plough del Ecuador, S.A. | Ecuador |
Schering-Plough Corporation and Subsidiaries
Subsidiaries of the Registrant
As of December 31, 2003
| State or Country | ||
| of Incorporation | ||
| Subsidiaries of Registrant | or Organization | |
| 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 Foundation, Inc. | Delaware | |
| Schering-Plough HealthCare Products Advertising Corp. | Tennessee | |
| Schering-Plough HealthCare Products Sales Corporation | California | |
| Schering-Plough HealthCare Products, Inc. | Delaware | |
| Schering-Plough Holdings France | France | |
| Schering-Plough Holdings (Ireland) Company | Ireland | |
| Schering-Plough Holdings Ltd. | United Kingdom | |
| Schering-Plough II - Veterinaria, Lda. | Portugal | |
| Schering-Plough INT Limited | United Kingdom | |
| Schering-Plough International Employees Inc. | Delaware | |
| Schering-Plough International, Inc. | Delaware | |
| Schering-Plough Investment Co., Inc. | Delaware | |
| Schering-Plough Investments Limited | Delaware | |
| Schering-Plough (Ireland) Company | Ireland | |
| 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) | Finland | |
| Schering-Plough Pensions Ireland Limited | Ireland | |
| Schering-Plough Pharmaceutical Industrial and Commercial S.A. | Greece | |
| Schering-Plough Polska Spoka | Poland | |
| Schering-Plough Products Caribe, Inc. | Puerto Rico | |
| Schering-Plough Products LLC | Puerto Rico | |
| Schering-Plough Products, Inc. | Delaware | |
| Schering-Plough Pty. Limited | Australia | |
| Schering-Plough Real Estate Company, Inc. | Delaware | |
| Schering-Plough Research Institute | Delaware | |
| Schering-Plough S.A. | France |
Schering-Plough Corporation and Subsidiaries
| State or Country | ||
| of Incorporation | ||
| Subsidiaries of Registrant | or Organization | |
| Schering-Plough S.A. | Paraguay | |
| Schering-Plough S.A. | Panama | |
| Schering-Plough S.A. | Dominican Republic | |
| Schering-Plough S.A. | Argentina | |
| Schering-Plough S.A. | Colombia | |
| 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 Singapore Pte. Ltd. | Singapore | |
| Schering-Plough Singapore Research Pte. Ltd. | Singapore | |
| Schering-Plough Tibbi Urunler Ticaret, A.S. | Turkey | |
| Schering-Plough Veterinaire | France | |
| Schering-Plough Veterinaria, S.A. de C.V. | Mexico | |
| Schering-Plough Veterinary Belgium NV | Belgium | |
| Schering-Plough Veterinary Corporation | Nevada | |
| Schering-Plough Veterinary Ltd. | Thailand | |
| Schering-Plough Veterinary Nederland BV | Netherlands | |
| Schering-Plough Veterinaria S.A. | Argentina | |
| Schering-Plough II Veterinaria LDA | Portugal | |
| Sentipharm A.G. | Switzerland | |
| Shanghai Schering-Plough Pharmaceutical Company, Ltd. | China | |
| SOL Limited | Bermuda | |
| SP Biotech, S.A. | Spain | |
| SP Flight Operations, Inc. | Delaware | |
| SP HealthCare Products Corp. | Delaware | |
| SP Neurotech, S.A. | Spain | |
| S-P Bermuda | Bermuda | |
| S-P RIL Limited (United Kingdom) | United Kingdom | |
| S-P Veterinary (UK) Limited | United Kingdom | |
| S-P Veterinary Holdings Limited | United Kingdom | |
| S-P Veterinary Limited | United Kingdom | |
| S-P Veterinary Pensions Limited | United Kingdom | |
| Summit Property Company LLC, The | Delaware | |
| Suntan Sensations, Inc. | California | |
| Takeda Schering-Plough Animal Health Kabushiki Kaisha | Japan | |
| Tasman Vaccine Laboratory (UK) Limited | United Kingdom |
Schering-Plough Corporation and Subsidiaries
Subsidiaries of the Registrant
As of December 31, 2003
| State or Country | ||
| of Incorporation | ||
| Subsidiaries of Registrant | or Organization | |
| Technobiotic Ltd. | Australia | |
| Trading Pharma AG | Switzerland | |
| Undra S.A. de C.V. | Mexico | |
| UNICET, SAS | France | |
| Warrick Pharmaceuticals Corporation | Delaware | |
| Warrick Pharmaceuticals Limited (United Kingdom) | United Kingdom | |
| Werthenstein Chemie A.G. | Switzerland | |
| White Laboratories of Canada Ltd. | Canada | |
| White Laboratories, Inc. | New Jersey | |
| White Pharma, S.A. | Argentina |