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There is no doubt that Botox is useful for treatment of wrinkles. However, since its introduction two decades ago, physicians have been finding new disorders that can be treated with Botox.
In most cases, the effectiveness of Botox has been based on anecdotal data. Even the few studies conducted have been sponsored by the manufacturer of Botox.
In the last decade, thousands of people have been injected with Botox for their migraines. Many neurologists even advertise on their website that they offer Botox for migraine.
Now the National Institute for Health and Clinical Excellence in England has said that there is insufficient evidence to support use of Botox in the treatment of migraine. (1)
The agency has requested that the manufacturer of Botox, Allergen, provide more objective data within the next three months.
Of course, the neurologists were disappointed because they insist that Botox does help people with migraines and relieves the nausea and vomiting.
Migraine is an agonizing disorder which often presents with:
1) severe headache
2) visual disturbances associated with flashing lights or bright spots
3) extreme sensitivity to noise, light or smell
4) nausea and vomiting
5) tingling, or pins and needle sensations in the limbs
Botox is injected into a minimum of 31 sites around the head and neck every 12 weeks. How Botox works in preventing chronic migraine is unknown. There is speculation that it may work by relaxing muscles or possibly interrupting pain signals.
However, the original data have been reassessed because of numerous patient complaints that the Botox doesn't work. Reevaluation of the results of the study has shown that the benefit of Botox was miniscule and the study design was not properly conducted.
The original studies were sponsored by Allergen and some doctors involved in the study were also paid consultants. Now the agency has asked for more data before it will recommend use of Botox for chronic migraines.
The agency has indicated that no additional data is forthcoming, the public will be advised not to spend additional money on a treatment that may have no benefits.