In this authoritative yet practical guide to the healing properties of cannabis and cannabinoids such as THC and CBD, Franjo Grotenhermen, M.D., explores how to use these substances to treat a wide range of physical and emotional conditions. Dr. Grotenhermen first examines the history of marijuana as medicine, including its important role in U.S. medical practice during the 19th century. He explains the biochemistry of cannabinoids and shows how they interact with the human body, including a look at cannabinoid receptors and how cannabinoids occur naturally in the body. The author then draws on his years of experience legally treating patients in Germany as well as numerous research studies and tests to provide an in-depth guide to the many healing applications for cannabis and its derivatives. The therapeutic applications covered include the use of CBD to treat seizures, epilepsy, anxiety, several forms of cancer, muscular disorders, and psychotic states and the use of THC to treat schizophrenia, Alzheimer’s, ADHD, Tourette’s, Parkinson’s, impotence, depression, lupus, COPD, and chronic pain, among many other physical, neurological, and emotional conditions. The author examines the various cannabis-derived medications available, such as Cannabinol, Dronabinol, and Marinol, and the main methods of administering cannabis. He offers a complete discussion of safe use, possible side effects, contraindications, and precautions (including during pregnancy and chemotherapy), alongside research data that confirms cannabis as one of the least toxic substances in existence. Written by a practicing physician, this guide provides everything you need to know to use cannabinoids safely and effectively for health and healing.