藥物交互作用
Clarithromycin + Irinotecan
嚴重程度: 嚴重
Clarithromycin and Irinotecan: major interaction.
最後更新
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摘要
Clarithromycin inhibits CYP3A4 and P-glycoprotein, which may increase exposure to irinotecan and its active metabolite SN-38 by diverting it away from inactive pathways. This may worsen neutropenia and diarrhea.
用白話說明這項交互作用的意義
Clarithromycin and Irinotecan 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.
Clarithromycin belongs to Anti Bacterial; Irinotecan belongs to Oncology.
為什麼會發生
CYP3A4 and P-glycoprotein inhibition by clarithromycin alters irinotecan disposition and increases toxic exposure.
處置方式
Choose a non-interacting antibiotic where possible. If clarithromycin is required, monitor closely for severe diarrhea and myelosuppression and adjust irinotecan as needed.
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?
Clarithromycin 的其他交互作用
Irinotecan 的其他交互作用
常見問題
Can I take Clarithromycin with Irinotecan?
MediHelp rates the interaction as major. Clarithromycin and Irinotecan 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. Clarithromycin inhibits CYP3A4 and P-glycoprotein, which may increase exposure to irinotecan and its active metabolite SN-38 by diverting it away from inactive pathways. This may worsen neutropenia and diarrhea.
How serious is the interaction between Clarithromycin and Irinotecan?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Choose a non-interacting antibiotic where possible. If clarithromycin is required, monitor closely for severe diarrhea and myelosuppression and adjust irinotecan as needed.
What other medicines interact with Clarithromycin?
MediHelp also lists interactions of Clarithromycin with, for example, Astemizole, Avanafil, Cisapride. The full list is on the Clarithromycin page.
在 MediHelp App 中取得完整藥品專論、劑量資訊與交互作用檢查
在 MediHelp App 中開啟完整參考資料、檢查多種藥物間的交互作用，並使用劑量工具。
