With the recent legal use of medical marijuana much clinical research has been published which strongly supports medical marijuana use for various indications. Studies have shown that medical marijuana can be useful for decreasing various types of pain including chronic pain caused by cancer, pain resulting from various neurologic diseases and pain created by muscle spasticity. Cannabis studies also show utility in treating nausea and vomiting, weight loss, and wasting syndrome in chronically ill persons. Additionally medical marijuana has been shown to be efficacious in treating glaucoma and useful for helping to reduce the need for narcotic medications in persons who have used narcotic drugs long term. Some studies have shown benefit in treating fibromyalgia, post-traumatic stress disorder (PTSD), seizures, Crohn’s disease and irritable bowel syndrome (IBS)