“Central pain syndromes (CPS) are difficult to treat… The clinical utility of cannabinoids has been suggested on the basis of anecdotal reports and small clinical studies for a wide range of pain syndromes, including cancer pain, visceral pain, migrain, and pain associated with spasticity. We report a patient with intractable CPS who experienced dramatic relief of pain and dystonia from cannabis… Our case report illustrates improvement in control of central pain and dystonia, and discontinuation of other treatments following cannabis use, suggesting a role for cannabinoids in the management of central pain syndromes with dystonia.”
http://www.jpsmjournal.com/article/S0885-3924(02)00426-8/fulltext