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Interações medicamentosas

Idelalisib + Tolvaptan

Gravidade: Contraindicada

Idelalisib and Tolvaptan: 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.

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Resumo

Idelalisib is a strong CYP3A inhibitor and is expected to markedly increase tolvaptan exposure. Strong CYP3A inhibitors are contraindicated with tolvaptan because of the risk of excessive aquaresis and overly rapid sodium correction.

O que esta interação significa em palavras simples

Idelalisib and Tolvaptan 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.

Idelalisib belongs to Oncology; Tolvaptan belongs to Endocrine.

Nível de evidência: Moderate

Por que acontece

Idelalisib strongly inhibits CYP3A4, greatly reducing tolvaptan clearance.

O que fazer

Do not combine; use an alternative to one of the drugs. If idelalisib is essential, withhold tolvaptan.

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?

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Perguntas frequentes

Can I take Idelalisib with Tolvaptan?

MediHelp rates the interaction as contraindicated. Idelalisib and Tolvaptan 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. Idelalisib is a strong CYP3A inhibitor and is expected to markedly increase tolvaptan exposure. Strong CYP3A inhibitors are contraindicated with tolvaptan because of the risk of excessive aquaresis and overly rapid sodium correction.

How serious is the interaction between Idelalisib and Tolvaptan?

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 combine; use an alternative to one of the drugs. If idelalisib is essential, withhold tolvaptan.

What other medicines interact with Tolvaptan?

MediHelp also lists interactions of Tolvaptan with, for example, Atazanavir, Ceritinib, Cobicistat. The full list is on the Tolvaptan page.

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