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Interazioni tra farmaci

Levoketoconazole + Tolvaptan

Gravità: Controindicata

Levoketoconazole and Tolvaptan: contraindicated interaction.

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Sintesi

Levoketoconazole is a strong CYP3A4 inhibitor and markedly raises tolvaptan exposure. Strong CYP3A inhibitors are contraindicated with tolvaptan because of the risk of overly rapid sodium correction and other toxicity.

Cosa significa questa interazione in parole semplici

Levoketoconazole 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.

Levoketoconazole belongs to Endocrine; Tolvaptan belongs to Endocrine.

Livello di evidenza: High

Perché avviene

Levoketoconazole strongly inhibits CYP3A4, greatly reducing tolvaptan clearance.

Cosa fare

Do not coadminister. Use an alternative therapy for one of the conditions.

Cosa chiedere al farmacista

  • 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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Domande frequenti

Can I take Levoketoconazole with Tolvaptan?

MediHelp rates the interaction as contraindicated. Levoketoconazole 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. Levoketoconazole is a strong CYP3A4 inhibitor and markedly raises tolvaptan exposure. Strong CYP3A inhibitors are contraindicated with tolvaptan because of the risk of overly rapid sodium correction and other toxicity.

How serious is the interaction between Levoketoconazole 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 coadminister. Use an alternative therapy for one of the conditions.

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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