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Drug interactions

Brentuximab + Levoketoconazole

Severity: Major

Brentuximab and Levoketoconazole: major 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

Levoketoconazole is a strong CYP3A4 inhibitor and can increase MMAE exposure from brentuximab vedotin. This raises the risk of neutropenia and peripheral neuropathy.

What this interaction means in plain words

Brentuximab and Levoketoconazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Brentuximab belongs to Oncology; Levoketoconazole belongs to Endocrine.

Evidence level: Moderate

Why it happens

Strong CYP3A4 inhibition reduces MMAE clearance.

What to do

Monitor blood counts and neuropathy closely, and consider an alternative to levoketoconazole. Hold or reduce brentuximab if neutropenia or neuropathy develops.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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 Brentuximab with Levoketoconazole?

MediHelp rates the interaction as major. Brentuximab and Levoketoconazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Levoketoconazole is a strong CYP3A4 inhibitor and can increase MMAE exposure from brentuximab vedotin. This raises the risk of neutropenia and peripheral neuropathy.

How serious is the interaction between Brentuximab and Levoketoconazole?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood counts and neuropathy closely, and consider an alternative to levoketoconazole. Hold or reduce brentuximab if neutropenia or neuropathy develops.

What other medicines interact with Brentuximab?

MediHelp also lists interactions of Brentuximab with, for example, Bleomycin, Dengue vaccine, Etrasimod. The full list is on the Brentuximab page.

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

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