We are delighted to introduce this comprehensive textbook on Pharmacology, tailored to meet the needs of students pursuing studies in this dynamic field. Pharmacology stands as the bedrock of modern medicine, serving as a vital link between basic science and clinical practice. It is our privilege to contribute to the comprehension of this vital discipline through the pages of this book. Our collaborative endeavor in developing this textbook has been driven by a shared goal: to offer students a lucid and succinct overview of the fundamental principles, mechanisms, and applications of pharmacology, while also delving into the latest advancements and research in the field. In an era marked by the rapid evolution of pharmacological sciences, it is crucial for students to have access to current information that mirrors the contemporary landscape of pharmacotherapy. Drawing upon our collective expertise and experiences as educators and practitioners in the field of pharmacology, we have meticulously crafted each chapter to provide a resource that is both informative and engaging. From elucidating the basic concepts of drug action and pharmacokinetics to unraveling the intricacies of drug interactions and pharmacogenomics, we aim to foster understanding and critical thinking among our readers. Our sincere aspiration is that this textbook serves as a trusted companion to students embarking on their journey in pharmacology, equipping them with the knowledge and skills necessary to navigate the complexities of drug therapy and make meaningful contributions to the advancement of healthcare.