“British researchers have determined that a little-studied chemical in the cannabis plant could lead to effective treatments for epilepsy, with few to no side effects.
The team at Britain’s University of Reading, working with GW Pharmaceuticals and Otsuka Pharmaceuticals, tested cannabidivarin, or CBDV, in rats and mice afflicted with six types of epilepsy and found it “strongly suppressed seizures” without causing the uncontrollable shaking and other side effects of existing anti-epilepsy drugs.
The casual use of marijuana — or cannabis — to control seizures dates back to ancient times. Its most prominent component, THC, is among those shown in animal studies to have strong anti-convulsant properties…”
http://articles.latimes.com/2012/sep/14/news/la-sn-cannabis-cbdv-epilepsy-20120914