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Interactions médicamenteuses

Atazanavir + Regorafenib

Gravité: Majeure

Atazanavir and Regorafenib: major interaction.

Dernière mise à jour

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Résumé

Atazanavir is a strong CYP3A4 inhibitor and may raise regorafenib concentrations while reducing active metabolite formation. The net effect on safety and efficacy is unpredictable and may increase toxicity such as hepatotoxicity.

Ce que signifie cette interaction, en termes simples

Atazanavir and Regorafenib 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; Regorafenib belongs to Oncology.

Niveau de preuve: Moderate

Pourquoi elle survient

Strong CYP3A4 inhibition reduces regorafenib metabolism.

Conduite à tenir

Avoid concomitant use of strong CYP3A4 inhibitors with regorafenib. Choose an alternative antiretroviral, or monitor liver function and tolerability closely.

Questions à poser à votre pharmacien

  • 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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Questions fréquentes

Can I take Atazanavir with Regorafenib?

MediHelp rates the interaction as major. Atazanavir and Regorafenib 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 may raise regorafenib concentrations while reducing active metabolite formation. The net effect on safety and efficacy is unpredictable and may increase toxicity such as hepatotoxicity.

How serious is the interaction between Atazanavir and Regorafenib?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concomitant use of strong CYP3A4 inhibitors with regorafenib. Choose an alternative antiretroviral, or monitor liver function and tolerability closely.

What other medicines interact with Regorafenib?

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

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Ouvrez le référentiel complet, vérifiez les interactions entre plusieurs médicaments et utilisez les outils de posologie dans l'application MediHelp.

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