藥物交互作用
Ergotamine + Erythromycin
嚴重程度: 禁忌併用
Ergotamine and Erythromycin: contraindicated interaction.
最後更新
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摘要
Erythromycin markedly increases ergotamine exposure and can trigger acute ergotism, with severe peripheral vasoconstriction, ischemia of the limbs, and cerebral ischemia. Cases of gangrene have been reported with macrolide and ergot combinations.
用白話說明這項交互作用的意義
Ergotamine and Erythromycin 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.
Ergotamine belongs to Central Nervous System; Erythromycin belongs to Anti Bacterial.
為什麼會發生
Inhibition of CYP3A4 decreases ergotamine metabolism, causing excessive vasoconstrictor exposure.
處置方式
Avoid the combination; choose a non-macrolide antibiotic or a non-ergot migraine treatment such as a triptan after checking labeling. Stop ergotamine and seek urgent care if numbness, coldness, or ischemic symptoms appear.
可向藥師詢問的問題
- 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?
Erythromycin 的其他交互作用
Ergotamine 的其他交互作用
常見問題
Can I take Ergotamine with Erythromycin?
MediHelp rates the interaction as contraindicated. Ergotamine and Erythromycin 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. Erythromycin markedly increases ergotamine exposure and can trigger acute ergotism, with severe peripheral vasoconstriction, ischemia of the limbs, and cerebral ischemia. Cases of gangrene have been reported with macrolide and ergot combinations.
How serious is the interaction between Ergotamine and Erythromycin?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination; choose a non-macrolide antibiotic or a non-ergot migraine treatment such as a triptan after checking labeling. Stop ergotamine and seek urgent care if numbness, coldness, or ischemic symptoms appear.
What other medicines interact with Erythromycin?
MediHelp also lists interactions of Erythromycin with, for example, Conivaptan, Dihydroergotamine intranasal, Dihydroergotamine. The full list is on the Erythromycin page.
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