Pharmacochemistry is defined as the study of the chemistry of drugs. However, there are several synonyms for this word that convey a similar meaning. Medicinal Chemistry is one such synonym, and it refers to the study of the synthesis, design, and development of drugs. Chemical Biology is another synonym and focuses on the chemical understanding of biological systems and the design of chemicals to manipulate them. Pharmaceutical Chemistry is a related field that specializes in the discovery, design, and synthesis of new drugs. Biochemistry is also relevant as it studies the chemical processes in biological organisms and how they relate to drug interactions. These synonyms all relate to the chemistry of drugs and their effects on biological systems.