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Interações medicamentosas

Ensitrelvir + Phenytoin

Gravidade: Contraindicada

Ensitrelvir and Phenytoin: contraindicated interaction.

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Para profissionais de saúde — apenas referência. Esta página é um resumo breve, não é aconselhamento médico nem substitui a bula oficial ou o julgamento clínico. Verifique sempre antes de prescrever ou dispensar.

O conteúdo clínico desta página está disponível apenas em inglês.

Resumo

Phenytoin is expected to lower ensitrelvir exposure significantly, risking inadequate antiviral effect. Labeling contraindicates strong CYP3A inducers with ensitrelvir.

O que esta interação significa em palavras simples

Ensitrelvir and Phenytoin 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; Phenytoin belongs to Central Nervous System.

Nível de evidência: Moderate

Por que acontece

Phenytoin induces CYP3A4, increasing ensitrelvir clearance.

O que fazer

Avoid coadministration and use an alternative COVID-19 antiviral not affected by induction. Use a non-inducing anticonvulsant if the patient's seizure management allows.

O que perguntar ao farmacêutico

  • 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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Perguntas frequentes

Can I take Ensitrelvir with Phenytoin?

MediHelp rates the interaction as contraindicated. Ensitrelvir and Phenytoin 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. Phenytoin is expected to lower ensitrelvir exposure significantly, risking inadequate antiviral effect. Labeling contraindicates strong CYP3A inducers with ensitrelvir.

How serious is the interaction between Ensitrelvir and Phenytoin?

MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid coadministration and use an alternative COVID-19 antiviral not affected by induction. Use a non-inducing anticonvulsant if the patient's seizure management allows.

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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