这两种大麻素来自大麻属植物。，Cannabidiol (CBD) and delta-9 Tetrahydrocannabinol (THC) have been extensively studied for their pharmacologic activities and therapeutic potential. CBD is being extensively promoted as medicine for the treatment of a wide range of clinical conditions ranging from neurological, mental, to numerous health conditions. The available research shows that it is all a myth that CBD can safely and effectively treat health conditions involving almost every physiological system as promoted. The reality is that research from well-designed clinical studies and trials show that CBD can safely and effectively treat only one type of rare and severe type of epilepsy, known as Lennox-Gastaut/Dravet syndrome, in young children for which it has been approved by the US FDA. In combination with THC known as Sativex, it is approved in 25 countries including Canada, except the United States, for treating symptoms of multiple sclerosis including muscle spasticity, pain and sleep disturbances. Therefore, it is important that addiction psychiatrists and other addiction health care professionals play an important role in educating their patients that there is insufficient data to support CBD as medicine for treating clinical indications for which it is being promoted.