Botox (OnabotulinumtoxinA) for Migraine | MyMigraineTeam

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Botox is a prescription drug approved by the Food and Drug Administration (FDA) to prevent chronic migraine in adults. Botox may be prescribed in cases where headaches that last at least four hours a day occur at least 15 days in a month. Botox may also be referred to by its drug name, OnabotulinumtoxinA.

Botox is an injectable form of the neurotoxin produced by the bacterium Clostridium botulinum. Botox is believed to work by inhibiting the release of certain molecules, such as acetylcholine, and preventing the movement of some nerves and muscles.

How do I take it?
Prescribing information states that Botox is administered in an office setting once every 12 weeks.

Botox is injected into seven muscle areas in the head and neck.

Side effects
The FDA-approved label for Botox lists common side effects including neck pain and headache.

Rare but serious side effects listed for Botox include problems swallowing and breathing that can lead to death.

For answers to frequently asked questions about exposure to Botox during pregnancy and breastfeeding, visit the experts at

For more details about this treatment, visit:
Botox for Chronic Migraine –

Botox – Allergan

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