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Interações medicamentosas

Levoketoconazole + Mefloquine

Gravidade: Contraindicada

Levoketoconazole and Mefloquine: contraindicated interaction.

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Resumo

Levoketoconazole is a strong CYP3A4 inhibitor and also prolongs the QT interval. It can raise mefloquine levels while both drugs add to QT prolongation, which increases the risk of torsades de pointes.

O que esta interação significa em palavras simples

Levoketoconazole and Mefloquine 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; Mefloquine belongs to Anti Parasitic.

Nível de evidência: Moderate

Por que acontece

Strong CYP3A4 inhibition raises mefloquine exposure, combined with additive QT prolongation.

O que fazer

Do not coadminister; use an alternative antimalarial. Remember mefloquine's long half-life when starting levoketoconazole after recent use.

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 Levoketoconazole with Mefloquine?

MediHelp rates the interaction as contraindicated. Levoketoconazole and Mefloquine 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 also prolongs the QT interval. It can raise mefloquine levels while both drugs add to QT prolongation, which increases the risk of torsades de pointes.

How serious is the interaction between Levoketoconazole and Mefloquine?

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 antimalarial. Remember mefloquine's long half-life when starting levoketoconazole after recent use.

What other medicines interact with Mefloquine?

MediHelp also lists interactions of Mefloquine with, for example, Arsenic trioxide, Dronedarone, Ibutilide. The full list is on the Mefloquine page.

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