This 1994 took a look at the effects that a cannabinoid known as WIN 55,212-2, a synthetic analog to tetrahydrocannabinol, had on dystonia Researchers administered WIN 55,212-2 to dystonic hamsters and noticed a reduction on the severity of catalepsy and spontaneous motor activity. They further found that a low dose of WIN 55,212-2 administered with a low dose of diazepam also showed very promising antidystonic effects.
It's a shame that the authors were of the opinion that the psychotropic effects of cannabinoids "limit their therapeutic utility." I think that all of the research done since then shows this statement to have been misguided.
