Medicinal chemistry deals with the design, chemical synthesis and development of pharmaceutical agents for the market. It makes use of principles from numerous sciences such as synthetic organic chemistry, pharmacology and other biological fields. The organic compounds which are used as medicines are classified into small organic molecules and biologics. This field also studies the inorganic and organometallic compounds which are used as drugs. Medicinal chemistry plays an important role in studying the chemical aspects of identification and synthetic alteration of new chemical entities to make them suitable for therapeutic agents. This book presents the complex subject of medicinal chemistry in the most comprehensible and easy to understand language. While understanding the long-term perspectives of the topics, it makes an effort in highlighting their impact as a modern tool for the growth of the discipline. Those in search of information to further their knowledge will be greatly assisted by this book.