The field of therapeutic medicine and drug discovery is undergoing a renaissance, marked by a renewed interest in natural products as a source of novel pharmaceuticals. In the age of advanced synthetic chemistry and biotechnology, the vast potential of natural compounds often remains untapped, yet history has repeatedly shown that nature harbors a wealth of bioactive substances capable of transforming human health. This book, Therapeutic Medicine and Drug Discovery Using Natural Products, aims to bridge the gap between traditional knowledge and modern scientific inquiry. By exploring the therapeutic potential of natural products, we seek to provide a comprehensive guide for researchers, clinicians, and students who are interested in harnessing the power of nature to develop new and effective treatments. This book is divided into several sections, each focusing on a critical aspect of drug discovery from natural products. We explored the science of natural products, including the identification, extraction, and characterization of bioactive compounds from various natural sources. The diverse biological activities of natural compounds, elucidating their mechanisms of action and potential therapeutic applications. Clinicians and pharmacists interested in the therapeutic potential of natural compounds will gain insights into how these substances can be integrated into modern medical practice. This book serves as an educational tool for students of pharmacology, medicinal chemistry, and related disciplines, offering a thorough overview of natural product drug discovery.