Pharmaceutical Chemistry is the study of drug design to optimize pharmacokinetics and pharmacodynamics, and synthesis of new drug molecules. Pharmaceutical Chemistry is a branch of chemistry that deals with the chemical, biochemical and pharmacological aspects of drugs. It includes synthesis/isolation, identification, structural elucidation, structural modification, structural activity relationship (SAR) studies, and study of the chemical characteristics, biochemical changes after drug administration and their pharmacological effects as well as analysis of drugs. In more simple words it is more broader than medicinal chemistry in its application also in the fields of analysis, identification, as well as, structural elucidation of drugs.