RESULTS: Thirty-seven participants were randomized at the start of the study, 30 of whom completed the trial. Treatment with smoked cannabis resulted in a significant reduction in spasticity using an objective clinician-rated measure. The placebo-controlled trial also resulted in reduced perception of pain, although participants also reported short-term, adverse cognitive effects and increased fatigue. No serious adverse events occurred during the trial. The full results of this study can be found here .http://www.cmaj.ca/content/early/2012/05/14/cmaj.110837 ABSTRACT: Multiple Sclerosis (MS) is the most common debilitating neurologic disease of young people, affecting at least 250,000 persons in the US, often between the ages of 20 and 40. Symptom manifestation varies considerably from person to person; however, one frequently noted concomitant is spasticity, which causes pain, spasms, loss of function and difficulties in nursing care. The present application is designed to expl