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Medicines glatiramer acetateQuestion & answer

glatiramer acetate · Medicine question

Can an allergic reaction happen after years of treatment?

iatroX medicinesMedicine guide reviewed 20 August 2026

The answer

Answer

Yes. Anaphylaxis can occur months or years after treatment begins, even when previous injections caused no allergic reaction.

Sources for this answer

Copaxone 20mg/ml, Solution For Injection, Pre-Filled Syringe — Current selected SmPCemc · Summary of Product Characteristics
UK GovernmentUK Government · Reputable Web

General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.

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glatiramer acetate

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