“We identified 16 randomized placebo-controlled trials investigating cannabinoids as symptomatic treatment in multiple sclerosis (MS).
There is evidence that nabiximols (THC/CBD) oromucosal spray may reduce subjective symptoms of spasticity and that dronabinol (THC) is effective against neuropathic pain in patients with MS…”
http://www.ncbi.nlm.nih.gov/pubmed/25350886
http://www.thctotalhealthcare.com/category/multiple-sclerosis-ms/