This book covers the different aspects of drug design and medicinal chemistry. Recently, medicinal chemistry has become accountable for clarifying interactions of chemical molecules procedures, such that many experts in life sciences, from agronomy to medication, are occupied in medicinal study. This book comprises of researches centering on molecular features of drug metabolism, pro-drug production, in silico and chemical compounds used in applicable methods. It even deals with fundamental issues and developments in medicinal chemistry and drug design. Particular significance is given to both conjectural and investigational features of contemporary drug design. This book intends to provide some useful knowledge to students and even experts working on the above stated topic. This book is a compilation of data provided by some of the renowned experts working in this field of science for years.