Botox injections have been approved for use in treating migraine sufferers by the US Food and Drug Administration (FDA).
The drug, which is more commonly used in cosmetic procedures to smooth wrinkles, works by blocking the connections between nerves and muscle, temporarily paralysing tissue.
Individuals who suffer from migraine attacks once every other day can now undergo Botox treatment, which is a purified form of botulinum and one of the most toxic substances in the world.
The FDA approved the new use after evaluating findings from two company studies of more than 1,300 patients who received either a Botox injection or a dummy injection.
Patients who received Botox reported slightly fewer “headache days” than patients given the placebo treatment. In one study, Botox patients reported approximately two fewer headache days than patients who did not receive the drug.
The ruling comes after Botox was approved to treat spasms in the elbows, wrists and fingers earlier in the year. It is also used to treat other movement disorders like cerebral palsy.