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Interações medicamentosas

Avanafil + Tipranavir

Gravidade: Contraindicada

Avanafil and Tipranavir: 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

Tipranavir, which is given with ritonavir, strongly inhibits CYP3A4 and can markedly raise avanafil exposure. This may cause profound hypotension, syncope, visual disturbances and prolonged erection or priapism.

O que esta interação significa em palavras simples

Avanafil and Tipranavir 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.

Avanafil belongs to Genitourinary; Tipranavir belongs to Anti Virals.

Nível de evidência: High

Por que acontece

Ritonavir-boosted tipranavir inhibits CYP3A4-mediated first-pass and hepatic metabolism of avanafil, reducing its clearance.

O que fazer

Do not combine avanafil with ritonavir-boosted tipranavir. Choose a non-CYP3A4-dependent option for erectile dysfunction, or use a PDE5 inhibitor at a labeled reduced dose with specialist advice.

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 Avanafil with Tipranavir?

MediHelp rates the interaction as contraindicated. Avanafil and Tipranavir 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. Tipranavir, which is given with ritonavir, strongly inhibits CYP3A4 and can markedly raise avanafil exposure. This may cause profound hypotension, syncope, visual disturbances and prolonged erection or priapism.

How serious is the interaction between Avanafil and Tipranavir?

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 avanafil with ritonavir-boosted tipranavir. Choose a non-CYP3A4-dependent option for erectile dysfunction, or use a PDE5 inhibitor at a labeled reduced dose with specialist advice.

What other medicines interact with Avanafil?

MediHelp also lists interactions of Avanafil with, for example, Amyl nitrite, Atazanavir, Clarithromycin. The full list is on the Avanafil page.

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