In a 2005 study, THC and cannabidiol were found to produce notable improvements in pain, quality of sleep, and to reduce disease activity in patients with rheumatoid arthritis. Both these compounds are among the cannabinoids naturally occurring in medical marijuana. In 2000, researchers found that cannabidiol "effectively blocked progression of arthritis" in animal trials.
Cancer patients can benefit from using medical marijuana, whether as an alternative cancer treatment or to help mitigate unpleasant side effects of chemotherapy. Even lung cancer patients can use medical marijuana-- studies show that smoking marijuana does not cause cancer. In fact, studies show that marijuana slows the invasion of cervical cancer and lung cancer cells. Cannabidiol, one of the five cannabinoids found in medical marijuana, also inhibits tumor growth in leukemia and breast cancer.
In a 2000 study, 70-80% of patients experienced pain relief when using medical marijuana.
Multiple Sclerosis symptoms that medicinal use of marijuana may help to alleviate include chronic pain, depression, fatigue, numbness, spasticity, ataxia, emotional changes, sexual dysfunction, and moreIn a survey of 112 medical marijuana patients with Multiple Sclerosis, over 80% reported improvement of spasticity, pain, tremor, depression, anxiety, and paresthesia.
It also helps the treatment of nausea, glaucoma, multiple sclerosis,