Botulinum Toxin Type A (BOTOX) for Treatment of Migraine

BOTOX

Botulinum Toxin Type A (BOTOX) for Treatment of Migraine

Jun
2001
Vol. 20. No. 2
William J Binder, MD, FACS | Michael F Brin, MD | Andrew Blitzer, MD, FACS | Janice M Pogoda, PhD

An open-label study and 2 double-blind, placebo controlled studies have provided supporting evidence of botulinum toxin type A (BTX-A) as an effective, well-tolerated treatment for migraine. Observed durations of benefit were consistent with known properties of BTX-A. Findings suggest that response may vary by features of preinjection headaches, such as migraine frequency. The precise mechanism by which BTX-A provides pain relief is hypothesized to be related not only to acetylcholine inhibition but also to a blocking action on the parasympathetic nervous system. Additional studies that control factors likely to be related to response may lead to better understanding of the BTX-A effect on migraine and an optimal treatment protocol.

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