Cannabis
basis. Cannabis belongs in the family Cannabaceae and may include three species, C. sativa , C. indica , and C. ruderalis , (APG II system) or one variable [...] the use of cannabis and its constituent cannabinoids, to treat disease or improve symptoms. Cannabis is used to reduce nausea and vomiting during chemotherapy [...] chemotherapy, to improve appetite in people with HIV/AIDS, and to treat chronic pain and muscle spasms.