a. De novo subjects being considered for enrollment and taking medications indicated for the treatment of spasticity (ie, baclofen, benzodiazepines, cannabinoids, carisoprodol, dantrolene, tizanidine, cyclobenzaprine, any neuroleptic, ropinoprole, tolperisone, and clonidine) must wash out from these medications for a minimum of 21 days by Baseline in order to be eligible for study treatment. De novo subjects found not to meet this criterion will be withdrawn from the study and will be considered screen failures.