This dictionary provides a convenient personal reference source, intended to complement more encyclopaedic works. First, there is an alphabetic, fully cross-indexed listing of pharmacologically active agents and their properties, containing details of some 4000 individual chemical agents including medical drugs in current use, experimental agents and toxins used as investigation tools. Over 10,000 alternative names are indexed, including chemical names, abbreviated chemical names, official pharmacological names, proprietary names and research code numbers