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Drug interactions

Atazanavir + Axitinib

Severity: Major

Atazanavir and Axitinib: 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

Atazanavir is a strong CYP3A4 inhibitor and can substantially raise axitinib concentrations. This increases risks such as hypertension, hemorrhage and hepatotoxicity.

What this interaction means in plain words

Atazanavir and Axitinib 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.

Atazanavir belongs to Anti Virals; Axitinib belongs to Oncology.

Evidence level: High

Why it happens

Strong CYP3A4 inhibition reduces axitinib metabolic clearance.

What to do

Prefer an alternative antiretroviral; if unavoidable, reduce axitinib dose by about half and monitor blood pressure and tolerability.

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 Atazanavir with Axitinib?

MediHelp rates the interaction as major. Atazanavir and Axitinib 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. Atazanavir is a strong CYP3A4 inhibitor and can substantially raise axitinib concentrations. This increases risks such as hypertension, hemorrhage and hepatotoxicity.

How serious is the interaction between Atazanavir and Axitinib?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer an alternative antiretroviral; if unavoidable, reduce axitinib dose by about half and monitor blood pressure and tolerability.

What other medicines interact with Axitinib?

MediHelp also lists interactions of Axitinib with, for example, Amobarbital, Apalutamide, Carbamazepine. The full list is on the Axitinib page.

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

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