藥物交互作用
Dihydroergotamine + Miconazole
嚴重程度: 嚴重
Dihydroergotamine and Miconazole: major interaction.
最後更新
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摘要
Dihydroergotamine is cleared mainly by CYP3A4, and strong inhibition of this enzyme can raise ergot levels sharply, causing ergotism with severe peripheral and cerebral vasospasm and ischemia. Miconazole is a CYP3A4 inhibitor and, although vaginal absorption is low, systemic exposure can occur and ergot toxicity is potentially catastrophic.
用白話說明這項交互作用的意義
Dihydroergotamine 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.
Dihydroergotamine belongs to Central Nervous System; Miconazole belongs to Anti Fungals.
為什麼會發生
Miconazole inhibits CYP3A4-mediated metabolism of dihydroergotamine, increasing its systemic concentrations.
處置方式
Avoid the combination where possible, and prefer a topical antifungal with minimal absorption or an alternative to the ergot. If used together, counsel the patient to report numbness, cold or painful extremities, or chest pain immediately.
可向藥師詢問的問題
- 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?
Miconazole 的其他交互作用
Dihydroergotamine 的其他交互作用
常見問題
Can I take Dihydroergotamine with Miconazole?
MediHelp rates the interaction as major. Dihydroergotamine 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. Dihydroergotamine is cleared mainly by CYP3A4, and strong inhibition of this enzyme can raise ergot levels sharply, causing ergotism with severe peripheral and cerebral vasospasm and ischemia. Miconazole is a CYP3A4 inhibitor and, although vaginal absorption is low, systemic exposure can occur and ergot toxicity is potentially catastrophic.
How serious is the interaction between Dihydroergotamine 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: Avoid the combination where possible, and prefer a topical antifungal with minimal absorption or an alternative to the ergot. If used together, counsel the patient to report numbness, cold or painful extremities, or chest pain immediately.
What other medicines interact with Miconazole?
MediHelp also lists interactions of Miconazole with, for example, Cabazitaxel, Dihydroergotamine intranasal, Ergotamine. The full list is on the Miconazole page.
在 MediHelp App 中取得完整藥品專論、劑量資訊與交互作用檢查
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