This comprehensive overview of neuroactive substances, covering all neurotransmitters and most neuromodulators, is almost a classic. It provides clearly structered information on the biosynthesis and degradation, localization, receptors, signal transduction pathways, and biological effects in the central nervous system. Introductory chapters on general aspects and on methods for analyzing neuroactive substances make this handbook a indispensable tool for researchers, teachers, and advanced students.