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MediHelp Référence médicamenteuse

Interactions médicamenteuses

Methadone + Miconazole

Gravité: Majeure

Methadone and Miconazole: major interaction.

Dernière mise à jour

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Résumé

Methadone is metabolized by CYP3A4, CYP2B6 and CYP2D6, and azole inhibitors can raise its levels. Higher methadone exposure risks excess sedation, respiratory depression and QT prolongation. Miconazole itself can also prolong the QT interval.

Ce que signifie cette interaction, en termes simples

Methadone and Miconazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Methadone belongs to Musculoskeletal; Miconazole belongs to Anti Fungals.

Niveau de preuve: Moderate

Pourquoi elle survient

Miconazole inhibits CYP3A4 (and CYP2B6/2D6), reducing methadone clearance, with possible additive QT effects.

Conduite à tenir

Monitor for sedation, respiratory depression and QT prolongation, with an ECG if there are other risk factors. Reduce the methadone dose if signs of excess appear, and prefer a topical non-azole option if possible.

Questions à poser à votre pharmacien

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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 Methadone with Miconazole?

MediHelp rates the interaction as major. Methadone and Miconazole can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Methadone is metabolized by CYP3A4, CYP2B6 and CYP2D6, and azole inhibitors can raise its levels. Higher methadone exposure risks excess sedation, respiratory depression and QT prolongation. Miconazole itself can also prolong the QT interval.

How serious is the interaction between Methadone and Miconazole?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for sedation, respiratory depression and QT prolongation, with an ECG if there are other risk factors. Reduce the methadone dose if signs of excess appear, and prefer a topical non-azole option if possible.

What other medicines interact with Miconazole?

MediHelp also lists interactions of Miconazole with, for example, Cabazitaxel, Dihydroergotamine intranasal, Dihydroergotamine. The full list is on the Miconazole 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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