Cervical Dystonia

Safety of Botulinum Toxin Type B

The safety and efficacy of MYOBLOC were demonstrated in several studies, including two, 16-week, double-blind, placebo-controlled clinical trials. Botulinum toxin type B is an effective treatment for cervical dystonia patients who respond to botulinum toxin type A as well as in patients who had develop resistance to botulinum toxin type A. Botulinum toxin type A and botulinum type B have slightly different chemical structures and their primary mechanisms of action also differ.