The purpose of this dictionary is to provide a convenient and affordable personal desk reference resource. The authors, who have many years experience in pharmacological research, teaching and editing, recognized a need for a single up-to-date volume encompassing material that hitherto could be gathered only from a well-stocked library. This book comprises two main sections: an A-Z listing of drugs and their properties; and a descriptive glossary of technical terms. The level and scope of this reference material will make it essential for pharmacologists and medicinal chemists, from the graduate student to established worker. It should also be valuable to workers in allied biomedical diSCiplines, such as biochemistry and physiology, medical students and science writers and editors. Scope The dictionary is centred on pharmacologically active agents. Workers in drug-related diSCiplines need to correctly identify individual agents from an arsenal of pharmacologically active compounds, each with a number of alternative drug names according to the country or naming convention.