This is a widely appreciated text on the subject. Primarily meant for BPharm students, this textbook is also useful for MPharm, BSc and MSc students studying organic chemistry and pharmaceutical chemistry. It aims at eliminating the inadequacies in teaching and learning of medicinal chemistry by providing valuable information on the most relevant topics. The text adequately covers the latest syllabi of Pharmacy Council of India (PCI) and all major Indian Universities. The fourth edition features new layout and design in an attractive two-color presentation. Salient Features Serves as a unique and valuable textbook containing completely updated information on medicinal chemistry, adapting to the latest/revised syllabus prescribed by Pharmacy Council of India (PCI). Presents clear classification, synthetic schemes, mode of action, metabolism, assay, pharmacological uses with the dose and structure-activity relationship (SAR) of the drugs for the various body systems. Includes a complete section on chemotherapy and the various classes of chemotherapeutic agents, also includes recent topics like anti-HIV agents. Provides a brief introduction on the physiological and pathophysiological conditions of diseases and their treatment. Discusses well-illustrated synthetic schemes alternative synthetic routes for a majority of drugs that help in quick and enhanced understanding of the subject. Explains thoroughly the topics on steroids with required information on nomenclature and SAR of various group of steroids. Embraces PCI syllabus-based classification of drugs for easy to study and write in examination. Incorporates updated information on several newer drugs in different chapters in consonance with the revised PCI syllabus. Serves as an excellent companion for the GPAT aspirants.