Contents: 1. Introduction to Medicinal Chemistry 2. General Principles of Drug Action 3. Physicochemical Properties of Organic Medicinal Agents 4. Quantitative Structure Activity Relationships 5. Drug Design 6. Combinatorial Chemistry 7. Sulfonamides 8. Penicillins 9. Cephalosporins 10. Aminoglycosides 11. Tetracyclines 12. Macrolides 13. Polypeptide and Miscellaneous Group of Antibiotics 14. Urinary Antiseptics 15. Anti-tubercular Drugs 16. Antileprotic Drugs 17. Antimalarials 18. Antiprotozoals 19. Anthelmentics 20. Antifungal Agents 21. Antiviral Agents 22. Anticancer Drugs 23. Gastrointestinal Agents 24. ardiovascular Agents 25. Coagulants and Anticoagulants 26. Diagnostic Agents 27. Chemistry of Vitamins 28. Steroids and Steriodal Drugs