“A retrospective registry study and a prospective safety study of THC:CBD oromucosal spray are reported.
…no evidence of addiction, abuse or misuse.
The homogeneity between these observational studies supports the interest in THC:CBD oromucosal spray for management of MS spasticity in daily practice.”
http://www.ncbi.nlm.nih.gov/pubmed/26901342
http://www.thctotalhealthcare.com/category/multiple-sclerosis-ms/