Pharmacology lies at the heart of modern medicine, bridging science and clinical practice to improve patient outcomes and support healthcare professionals in making informed decisions. This book is crafted to provide a solid foundation in pharmacology, tailored specifically for medical, pharmacy, and nursing students. It aligns closely with the Pharmacy Council of India (PCI) guidelines and follows international standards, ensuring it meets the educational needs of students across disciplines. This comprehensive yet accessible text has been developed with the guidance and insights of experienced faculties from leading academic institutions and practicing professionals. Each chapter is designed to enhance the understanding of core pharmacological concepts, covering essential topics such as drug mechanisms, therapeutic uses, side effects, and contraindications. The content is organized to facilitate stepwise learning-from fundamental principles to specific drug classes and clinical applications. One of the primary goals of this book is to integrate theoretical knowledge with practical applications. Through case studies, real-world examples, and clinical scenarios, students will learn not only the science of pharmacology but also how to apply this knowledge in patient-centered care. Each section is supplemented with self-assessment questions, illustrations, and summaries to reinforce learning and facilitate review. To keep pace with the rapid advancements in pharmacology, this book also covers recent developments, emerging drug classes, and updated treatment protocols. By incorporating evidence-based practices and focusing on the latest therapeutic trends, we aim to equip students with the tools and confidence needed to excel in their professional careers. This book is a result of a collaborative effort among dedicated educators, clinicians, and subject matter experts who have worked diligently to create a resource that is both informative and engaging. We hope this text will serve as a valuable tool in your journey toward becoming compassionate and knowledgeable healthcare providers .We extend our sincere gratitude to all the contributors, reviewers, and supporters of this project, whose expertise and insights have been invaluable in bringing this book to fruition.