NEW YORK --Â Medical marijuana is becoming mainstream: 21 states and the District of Columbia allow it. But until Monday, little was known about whether it can effectively treat neurological disorders. …
On Monday, for the first time, the American Academy of Neurology said medical marijuana is an effective treatment for some symptoms of multiple sclerosis. It concluded spasm, muscle tightness and pain can all be helped.
But that's when the drug is given as an oral spray or pill. There's not enough evidence to determine if smoking marijuana was equally effective, says lead author Dr. Barbara Koppel.
