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Drug interactions

Erdafitinib + Mitomycin

Severity: Moderate

Erdafitinib and Mitomycin: moderate interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Erdafitinib inhibits P-glycoprotein and could raise exposure to P-gp substrates. Mitomycin is a possible P-gp substrate, but the clinical relevance is not established.

What this interaction means in plain words

Erdafitinib and Mitomycin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Erdafitinib belongs to Oncology; Mitomycin belongs to Oncology.

Evidence level: Low

Why it happens

Inhibition of P-glycoprotein efflux by erdafitinib, potentially increasing mitomycin exposure.

What to do

Monitor for enhanced mitomycin toxicity, particularly myelosuppression and renal effects.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Erdafitinib with Mitomycin?

MediHelp rates the interaction as moderate. Erdafitinib and Mitomycin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Erdafitinib inhibits P-glycoprotein and could raise exposure to P-gp substrates. Mitomycin is a possible P-gp substrate, but the clinical relevance is not established.

How serious is the interaction between Erdafitinib and Mitomycin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for enhanced mitomycin toxicity, particularly myelosuppression and renal effects.

What other medicines interact with Mitomycin?

MediHelp also lists interactions of Mitomycin with, for example, Bacitracin, Deferiprone, Dengue vaccine. The full list is on the Mitomycin page.

Full monographs, dosing and an interaction checker in the MediHelp app

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