Botulinum toxin type B for cervical dystonia

• Cochrane Database Syst Rev. 2005

• A single injection of BtB was effective and safe for treating cervical dystonia.

• Long-term uncontrolled studies suggested that further injection cycles continue to work for most patients.

• Future research should explore technical factors such as the optimum treatment intervals and use of image or electromyographic guidance for administration.

• Other issues include service delivery, quality of life, long-term efficacy and safety, and the relative indications for BtA, BtB and other treatments such as deep brain stimulation.

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