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Drug interactions

Darolutamide + Erythromycin

Severity: Moderate

Darolutamide and Erythromycin: 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

Erythromycin inhibits both P-gp and CYP3A4 and may increase darolutamide exposure, raising the risk of adverse effects such as fatigue and rare cardiac events.

What this interaction means in plain words

Darolutamide and Erythromycin 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.

Darolutamide belongs to Miscellaneous; Erythromycin belongs to Anti Bacterial.

Evidence level: Moderate

Why it happens

Inhibition of P-gp and CYP3A4 reduces darolutamide efflux and metabolism.

What to do

Monitor closely for darolutamide adverse reactions and reduce the dose if poorly tolerated. Consider azithromycin as an alternative.

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 Darolutamide with Erythromycin?

MediHelp rates the interaction as moderate. Darolutamide and Erythromycin 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. Erythromycin inhibits both P-gp and CYP3A4 and may increase darolutamide exposure, raising the risk of adverse effects such as fatigue and rare cardiac events.

How serious is the interaction between Darolutamide and Erythromycin?

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 closely for darolutamide adverse reactions and reduce the dose if poorly tolerated. Consider azithromycin as an alternative.

What other medicines interact with Erythromycin?

MediHelp also lists interactions of Erythromycin with, for example, Conivaptan, Dihydroergotamine intranasal, Dihydroergotamine. The full list is on the Erythromycin page.

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