Medical cannabis, or
medical marijuana, refers to the use of
cannabis and its
cannabinoids to treat disease or improve symptoms. The use of cannabis as a medicine has not been rigorously scientifically tested, often due to production restrictions. There is limited evidence suggesting cannabis can be used to
reduce nausea and vomiting during
chemotherapy, to improve appetite in people with
HIV/AIDS, and to treat
chronic pain and
muscle spasms. Its use for other medical applications is insufficient for conclusions about safety or efficacy.