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Medicines emicizumabQuestion & answer

emicizumab · Medicine question

Why must laboratories know that I use emicizumab?

iatroX medicinesPublished 20 August 2026Reviewed 20 August 2026

The answer

Answer

It can make aPTT and several related clotting tests misleading, potentially affecting decisions about bleeding treatment or anticoagulation.

Sources for this answer

Hemlibra 30 mg/mL and 150 mg/mL Solution for Injectionemc · SmPC Current selected SmPC · Version 17

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The full medicine guide

emicizumab

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

Read the emicizumab guide

More questions about emicizumab

Is emicizumab a factor VIII replacement?Does emicizumab treat an active bleed?Can emicizumab be injected at home?What should I do if bleeding increases?

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