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Interactions médicamenteuses

Clarithromycin + Levoketoconazole

Gravité: Contre-indiquée

Clarithromycin and Levoketoconazole: contraindicated interaction.

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Résumé

Levoketoconazole is a strong CYP3A4 inhibitor that can raise clarithromycin levels, and both drugs prolong the QT interval. Levoketoconazole is contraindicated with other QT-prolonging CYP3A4 substrates, so the combination carries a serious arrhythmia risk.

Ce que signifie cette interaction, en termes simples

Clarithromycin and Levoketoconazole 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.

Clarithromycin belongs to Anti Bacterial; Levoketoconazole belongs to Endocrine.

Niveau de preuve: High

Pourquoi elle survient

CYP3A4 inhibition increases clarithromycin exposure, with additive QT prolongation.

Conduite à tenir

Do not co-administer; use a non-QT-prolonging antibiotic that is not a CYP3A4 substrate or inhibitor.

Questions à poser à votre pharmacien

  • 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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Questions fréquentes

Can I take Clarithromycin with Levoketoconazole?

MediHelp rates the interaction as contraindicated. Clarithromycin and Levoketoconazole 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 that can raise clarithromycin levels, and both drugs prolong the QT interval. Levoketoconazole is contraindicated with other QT-prolonging CYP3A4 substrates, so the combination carries a serious arrhythmia risk.

How serious is the interaction between Clarithromycin and Levoketoconazole?

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 co-administer; use a non-QT-prolonging antibiotic that is not a CYP3A4 substrate or inhibitor.

What other medicines interact with Clarithromycin?

MediHelp also lists interactions of Clarithromycin with, for example, Astemizole, Avanafil, Cisapride. The full list is on the Clarithromycin page.

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Ouvrez le référentiel complet, vérifiez les interactions entre plusieurs médicaments et utilisez les outils de posologie dans l'application MediHelp.

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