Pharmacology is the study of mechanisms, sources and applications of drug action. It involves the study of how organisms react to drugs, action of the drugs, and the usage of drugs as a tool for delineating biological processes in disease and health. Pharmacology is closely linked to biomedicine, but at different levels on the health spectrum. Pharmacology is concerned with assuring the appropriateness and safety, whereas biomedical science is concerned with conducting research to aid in the discovery of treatments. Biomedicine is a subfield of medical science that applies physiological and biological principles in clinical practice. It is based on molecular biology and integrates all aspects of molecular medicine into large-scale functional and structural relationships of the human genome, metabolome, transcriptome, physiome and proteome with the specific goal of developing new technologies for prediction, diagnosis and treatment of diseases. It locates issues inside the body and resolves it by medical intervention, depending on the severity of the disease. This book provides significant information to help develop a good understanding of emerging trends in pharmacology and biomedicine. It will help the readers in keeping pace with the rapid changes in these fields.