Medicinal use of cannabis based products and cannabinoids Tom P. Freeman, Chandni Hindocha, Sebastian F. Green, Michael A. P. Bloomfield British Medical Journal, 2019, 365, l1141 doi : 10.1136/bmj.l1141   What you need to know • Cannabis based products for medicinal use contain cannabinoids derived from the cannabis plant, including Δ9-tetrahydrocannabinol (THC), cannabidiol (CBD), or a combination of THC and CBD. Synthetic cannabinoids for medicinal use typically mimic the effects of specific cannabinoids such as THC • THC is the constituent of cannabis that causes the “high,” whereas CBD is not intoxicating at typical doses. THC and CBD have contrasting mechanisms of action and therapeutic indications; THC [...]