Medical cannabis (also referred to as medical marijuana, medicinale cannabis) refers to the use of the dried flowers and subtending leaves and stems from pistillate Cannabis plants as a physician-recommended drug or herbal therapy as well as to the constituents of cannabis, THC and other Cannabinoids.

Although the extent of the medicinal value of cannabis has been debated, it does have several well-documented beneficial effects. Among these are: the amelioration of nausea and vomiting, stimulation of hunger in chemotherapy and AIDS patients, lowered intraocular eye pressure (shown to be effective for treating glaucoma), as well as general analgesic effects (pain reliever).b

Less confirmed individual studies also have been conducted indicating cannabis to be beneficial to a gamut of conditions running from multiple sclerosis to depression. Synthesized cannabinoids are also sold as prescription drugs, including Marinol (dronabinol in the United States and Germany) and Cesamet (nabilone in Canada, Mexico, The United States and The United Kingdom).b