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Dyskinesia is an abnormal, uncontrolled, involuntary movement. It can affect one body part, such as an arm, leg or the head, or it can spread over the entire body. Dyskinesia can look like fidgeting, writhing, wriggling, head bobbing or body swaying. It doesn't happen in everyone with Parkinson's, and in those who do have it, it occurs to different degrees of severity. Cannabis has been used for many medicinal purposes, including management of spasms, dystonia, and dyskinesias, with variable success. Its use for tetanus was described in the second century BCE, but the literature continues to include more case reports and surveys of its beneficial effects in managing symptoms of hyperkinetic movement disorders than randomized controlled trials, making evidence-based recommendations difficult. This paper reviews clinical research using various formulations of cannabis (botanical products, oral preparations containing ?9-tetrahydrocannabinol and/or cannabidiol) and currently available preparations in the USA (nabilone and dronabinol). This has been expanded from a recent systematic review of cannabis use in several neurologic conditions to include case reports and case series and results of anonymous surveys of patients using cannabis outside of medical settings, with the original evidence classifications marked for those papers that followed research protocols. Despite overlap in some patients, dyskinesias will be treated separately from dystonia and chorea; benefit was not established beyond individual patients for these conditions. Tics, usually due to Tourettes, did respond to cannabis preparations. In some people, dyskinesia may be painful or bothersome to the point that it interferes with exercise, social life or other daily activities. Many people, though, say they prefer having dyskinesia to being rigid or less mobile due to Parkinson's.Treatment for Parkinson’s disease often comes with side effects. One of them is dyskinesia -- strange, jerky