Aimovig is most likely to benefit people who have at least one of the following: Four or more migraine attacks per month. Eight or more headache days per month. Intolerable side effects from other preventive treatments.

Is weight gain a side effect of Aimovig?

Weight loss or weight gain isn't a side effect of Aimovig. Weight changes weren't reported in clinical studies of people using the drug. A different medication called topiramate (Topamax), which is also used to prevent migraine headaches, can cause weight loss.

Who should not use Aimovig?

You should not use Aimovig if you are allergic to erenumab. Aimovig is not approved for use by anyone younger than 18 years old. Tell your doctor if you have ever had: an allergy to latex.