藥物交互作用
Dihydroergotamine intranasal + Miconazole
嚴重程度: 嚴重
Dihydroergotamine intranasal and Miconazole: major interaction.
最後更新
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摘要
Intranasal dihydroergotamine is still metabolized by CYP3A4, so inhibitors of this enzyme can increase systemic ergot exposure and the risk of vasospastic ischemia. Miconazole can inhibit CYP3A4 after systemic absorption, and ergotism can be severe.
用白話說明這項交互作用的意義
Dihydroergotamine intranasal 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.
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 select a non-interacting antifungal or migraine therapy. If unavoidable, monitor for signs of peripheral ischemia such as cold, numb or painful limbs.
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
常見問題
Can I take Dihydroergotamine intranasal with Miconazole?
MediHelp rates the interaction as major. Dihydroergotamine intranasal 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. Intranasal dihydroergotamine is still metabolized by CYP3A4, so inhibitors of this enzyme can increase systemic ergot exposure and the risk of vasospastic ischemia. Miconazole can inhibit CYP3A4 after systemic absorption, and ergotism can be severe.
How serious is the interaction between Dihydroergotamine intranasal 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 select a non-interacting antifungal or migraine therapy. If unavoidable, monitor for signs of peripheral ischemia such as cold, numb or painful limbs.
What other medicines interact with Miconazole?
MediHelp also lists interactions of Miconazole with, for example, Cabazitaxel, Dihydroergotamine, Ergotamine. The full list is on the Miconazole page.
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