Pharmacology refers to a branch of medicinal science which deals with the study of any artificial, natural and endogenous molecule which has a biochemical or physiological effect on the tissues, cells and organs of any living body. It studies the interactions between drugs and organs. Health professionals like physicians and pharmacists need a deep understanding of the drugs and their administration as they need to provide patients with the correct dosage and efficient medicines. This book gives comprehensive insights into the field of pharmacology. It elucidates the formations and applications of various new and existing drugs in a detailed manner. The objective of this text is to provide in-depth knowledge of the different uses and areas of pharmacology. It will serve as a valuable source of reference for professionals, students and researchers alike.