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Interactions médicamenteuses

Ensitrelvir + Rifampicin

Gravité: Contre-indiquée

Ensitrelvir and Rifampicin: contraindicated interaction.

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Résumé

Rifampicin strongly induces CYP3A and can markedly lower ensitrelvir plasma concentrations. Subtherapeutic exposure may cause loss of antiviral activity and treatment failure.

Ce que signifie cette interaction, en termes simples

Ensitrelvir and Rifampicin are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.

Ensitrelvir belongs to Anti Virals; Rifampicin belongs to Anti Bacterial.

Niveau de preuve: High

Pourquoi elle survient

Rifampicin induces CYP3A (and transporters), accelerating ensitrelvir metabolism and lowering exposure.

Conduite à tenir

Do not co-administer; select an alternative COVID-19 antiviral not affected by strong inducers. If rifampicin is essential, avoid ensitrelvir.

Questions à poser à votre pharmacien

  • Is there an alternative to one of these two medicines for me?
  • If both are essential, who is monitoring me and how often?
  • Which symptoms mean I should stop and seek help straight away?

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 Ensitrelvir with Rifampicin?

MediHelp rates the interaction as contraindicated. Ensitrelvir and Rifampicin are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Rifampicin strongly induces CYP3A and can markedly lower ensitrelvir plasma concentrations. Subtherapeutic exposure may cause loss of antiviral activity and treatment failure.

How serious is the interaction between Ensitrelvir and Rifampicin?

MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not co-administer; select an alternative COVID-19 antiviral not affected by strong inducers. If rifampicin is essential, avoid ensitrelvir.

What other medicines interact with Ensitrelvir?

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

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