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Interactions médicamenteuses

Ribavirin + Zidovudine

Gravité: Majeure

Ribavirin and Zidovudine: major interaction.

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Résumé

Ribavirin may reduce the intracellular phosphorylation of zidovudine to its active form, potentially lowering antiretroviral activity. Both drugs also cause hematologic toxicity, so anemia and neutropenia may be worsened.

Ce que signifie cette interaction, en termes simples

Ribavirin and Zidovudine 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.

Ribavirin belongs to Anti Virals; Zidovudine belongs to Anti Virals.

Niveau de preuve: Moderate

Pourquoi elle survient

Competition for intracellular phosphorylation reduces zidovudine activation, with additive bone marrow suppression.

Conduite à tenir

Avoid zidovudine in patients receiving ribavirin and use another nucleoside backbone; if unavoidable, monitor HIV viral load and complete blood counts 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 Ribavirin with Zidovudine?

MediHelp rates the interaction as major. Ribavirin and Zidovudine 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. Ribavirin may reduce the intracellular phosphorylation of zidovudine to its active form, potentially lowering antiretroviral activity. Both drugs also cause hematologic toxicity, so anemia and neutropenia may be worsened.

How serious is the interaction between Ribavirin and Zidovudine?

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 zidovudine in patients receiving ribavirin and use another nucleoside backbone; if unavoidable, monitor HIV viral load and complete blood counts closely.

What other medicines interact with Ribavirin?

MediHelp also lists interactions of Ribavirin with, for example, Didanosine, Stavudine, Abacavir. The full list is on the Ribavirin page.

Monographies complètes, posologies et vérificateur d'interactions dans l'application MediHelp

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

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