Understanding interaction between drug molecules and targets is a major pharmacological skill. Molecular and Cellular Pharmacology approaches have greatly increased the knowledge of the structure and function of drug targets, such as receptors, enzymes and transport molecules, revealing diversity far greater than had been realised. This textbook provides a comprehensive and accessible introduction to the rapidly expanding field of cellular and molecular pharmacology. The book deals with most commonly used experiments to understand the relationship of proteins and their involvement in a pathological state at molecular and cellular level. This book is off immense use for research scholars dealing with protein estimation and identification.