Interações medicamentosas
Methadone + Miconazole
Gravidade: Grave
Methadone and Miconazole: major interaction.
Última atualização
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.
O conteúdo clínico desta página está disponível apenas em inglês.
Resumo
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.
O que esta interação significa em palavras 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.
Por que acontece
Miconazole inhibits CYP3A4 (and CYP2B6/2D6), reducing methadone clearance, with possible additive QT effects.
O que fazer
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.
O que perguntar ao farmacêutico
- 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?
Para assinantes do Pro+
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Outras interações de Miconazole
Outras interações de Methadone
- Alvimopan + Methadone Contraindicada
- Calcium / magnesium / potassium / sodium oxybates + Methadone Contraindicada
- Droperidol + Methadone Contraindicada
- Ibutilide + Methadone Contraindicada
- Isocarboxazid + Methadone Contraindicada
- Lefamulin + Methadone Contraindicada
Perguntas frequentes
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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