Decriminalization of non-medical cannabis in the United States drug, which contains a very active component delta-9-tetrahydrocannabinol (THC). For thousands of years, it was used for medical purposes in many different parts of the world. Recent studies also agreed that THC had great potential benefits for medical purposes. A number of patients who have HIV, multiple sclerosis (MS), neuropathic chronic pain, and cancer were under medical marijuana treatment. The treatments could either be smoke on cannabis or oral preparations, which were synthetic THC and synthetic equivalent. According to Medical Uses of Marijuana (Cannabis sativa), patients with HIV reported that the drug reduced mixed neuropathic pain more significantly in comparison
Center for Drug Evaluation and Research new drugs on healthy volunteers in small groups to determine the maximum safe dosage. Phase II trials involve patients with the condition the drug is intended to treat to test for safety and minimal efficacy in a somewhat larger group of people. Phase III trials involve one to five thousand patients to determine whether the drug is effective in treating the condition it is intended to be used for. After this stage, a new drug application is submitted. If the drug is approved, stage IV trials are conducted after marketing to ensure there are no adverse effects or long term