Cannabidiol (CBD) is a non-psychoactive phytocannabinoid, one of the 113 recognised cannabinoids in cannabis plants, along with tetrahydrocannabinol (THC), and accounts for up to 40% of the plant extract. Medically, it is an anticonvulsant used to treat multiple forms of epilepsy. It was discovered in 1940 and, as of 2024, clinical research on CBD included studies related to the treatment of anxiety, addiction, psychosis, movement disorders and pain