相互作用
Clarithromycin + Ergotamine
重症度: 併用禁忌
Clarithromycin and Ergotamine: contraindicated interaction.
最終更新日 出典: US FDA label
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概要
Clarithromycin increases ergotamine concentrations and has been associated with acute ergot toxicity, including severe vasospasm and ischemia of the extremities, central nervous system and heart. Serious ischemic complications have been reported, sometimes after only a few doses. Concomitant use is contraindicated in product labeling.
この相互作用をわかりやすく説明すると
Clarithromycin and Ergotamine 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.
Clarithromycin belongs to Anti Bacterial; Ergotamine belongs to Central Nervous System.
なぜ起こるのか
Clarithromycin strongly inhibits CYP3A4, reducing the metabolism of ergotamine and causing excessive exposure and vasoconstriction.
対処法
Do not combine; choose a non-interacting antibiotic such as azithromycin (weaker effect) or another class suited to the infection if an ergot is needed. Alternatively withhold ergotamine and treat migraine with a non-ergot agent while clarithromycin is given.
薬剤師に尋ねること
- 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?
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アカウントを作成してPro+トライアルを始めると、ClarithromycinとErgotamineの臨床対応の詳細なアドバイス、追加の注記、エビデンスの詳細、処方全体を対象とした相互作用チェッカーを利用できます。
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
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参考文献
Ergotamineのその他の相互作用
Clarithromycinのその他の相互作用
よくある質問
Can I take Clarithromycin with Ergotamine?
MediHelp rates the interaction as contraindicated. Clarithromycin and Ergotamine 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. Clarithromycin increases ergotamine concentrations and has been associated with acute ergot toxicity, including severe vasospasm and ischemia of the extremities, central nervous system and heart. Serious ischemic complications have been reported, sometimes after only a few doses. Concomitant use is contraindicated in product labeling.
How serious is the interaction between Clarithromycin and Ergotamine?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not combine; choose a non-interacting antibiotic such as azithromycin (weaker effect) or another class suited to the infection if an ergot is needed. Alternatively withhold ergotamine and treat migraine with a non-ergot agent while clarithromycin is given.
What other medicines interact with Ergotamine?
MediHelp also lists interactions of Ergotamine with, for example, Almotriptan, Atazanavir, Cobicistat. The full list is on the Ergotamine page.
完全なモノグラフ、用量、相互作用チェッカーはMediHelpアプリで
MediHelpアプリで、完全なリファレンスを開き、複数薬剤の相互作用をチェックし、用量ツールを利用できます。
