Medical cannabis refers to the use of parts of the herb cannabis (also referred to as medical marijuana) as a physician-recommended form of medicine or herbal therapy, or to synthetic forms of specific cannabinoids such as THC as a physician-recommended form of medicine. The Cannabis plant from which the cannabis drug is derived has a long history of medicinal use, with evidence dating back to 2,737 BCE.[1] Synthetic cannabinoids such as Marinol and Cesamet are available as prescription drugs in some countries. A number of studies, some disputed, claim that medical cannabis relieves symptoms and is helpful in the treatment of many diseases. A 2002 review of medical literature by Franjo Grotenhermen states that medical cannabis has established effects in the treatment of nausea, vomiting,



