By Rachel Fields March 04, 2011
Botulinum toxin A has been shown to be ineffective in treating cervical myofascial pain syndrome, according to an Anesthesiology News report.A study presented at the 2010 annual fall meeting of the American Society of Regional Anesthesia and Pain Medicine looked at eight patients who received injections of Botox-A in three trigger points. According to the report, the patients experienced pain relief for only eight weeks before pain returned.
Researchers said the results line up with prior research, though the small sample size (eight patients) limits the findings' significance.
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