“If you’re looking for a comprehensive work on hallucinogens, this is it! This book can benefit all, from novice to expert. Grob and Grigsby take the reader on a journey through all aspects of medical hallucinogens, including their neuroscience, therapeutic considerations, and more. The book dives into individual hallucinogens and incorporates contributions from leading experts in the field. This is the ideal reference and text for the current renaissance of psychedelic research.”

—Rick Doblin, PhD, Executive Director, Multidisciplinary Association for Psychedelic Studies


“This volume is a wide-ranging, interdisciplinary, state-of-the-art overview of the powerful and curious chemicals variously known as hallucinogens, psychedelics, and entheogens. The Handbook surveys their history, cross-cultural use, therapeutic potentials, and implications for our understanding of human psychology and mental health.”

—Roger Walsh, MD, PhD, DHL, Professor Emeritus of Psychiatry, Philosophy, and Anthropology, University of California, Irvine


“This fantastic book has managed to thoughtfully address literally every aspect of psychedelics and psychedelic medicine in a single volume. Following an in-depth history of these medicines, with special attention paid to cultural and ecological aspects, chapters examine the major psychedelic compounds, neuroscience, psychotherapeutic elements, and specific clinical indications, before concluding with explorations of philosophical and existential implications. A superb addition to the field, this is an excellent resource for both the newcomer looking for a thorough introduction to psychedelics and the experienced clinician who seeks a deeper understanding of these substances' history and psychotherapeutic potentials.”

—Franklin King IV, MD, Director, Training and Education, Center for Neuroscience of Psychedelics, Massachusetts General Hospital; Instructor, Department of Psychiatry, Harvard Medical School


“The Handbook of Medical Hallucinogensis my go-to text for students interested in learning more about the pharmacology of psychedelics, their history and place in culture, and their future in healthcare practice.”

—Andrew Penn, MS, PMHNP-BC, Clinical Professor, School of Nursing, University of California, San Francisco