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Medicines fremanezumabQuestion & answer

fremanezumab · Medicine question

Can it cause a delayed allergic reaction?

iatroX medicinesPublished 20 August 2026Reviewed 20 August 2026

The answer

Answer

Yes. Reactions can begin hours or weeks after an injection.

Sources for this answer

Ajovy (fremanezumab) 225mg Pre-filled Syringe for Injectionemc · SmPC Current selected SmPC · Version 10

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The full medicine guide

fremanezumab

Read the wider context, including uses, precautions and the sources behind this medicine guide.

Read the fremanezumab guide

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