10 mg THC significantly reduced spasticity.
Link: Treatment Of Human Spasticity With Delta 9-tetrahydrocannabinol
Year: 1981
DOI: 10.1002/j.1552-4604.1981.tb02621.x
Likely probability of the efficacy of cannabis for treatment of Multiple Sclerosis (MS) according to the results found in this study.
Either 10 or 5 mg THC or placebo once daily