Buy NEUROBLOC Buy NEUROBLOC. Using its key ingredient Botulinum toxin type B, derived from bacterium Clostridium botulinum, NEUROBLOC’s helps treat Cervical Dystonia, which is an abnormality of muscle posture in the neck and shoulders. Improve muscle tone and posture Minimise pain associated in neck and shoulders Treat Cervical Dystonia (torticollis) Relaxed