The 5-Minute Rule for Cannabidiol - C21H30O2 - PubChem A placebo-controlled, parallel group, randomized withdrawal study of subjects with signs of spasticity due to multiple sclerosis who are getting long-term Sativex( nabiximols). Mult Scler 2012; 18(2):219 -28. View abstract. Novotna A, Mares J, Ratcliffe S, et al. A