相互作用
Clarithromycin + Irinotecan
重症度: 重大
Clarithromycin and Irinotecan: major interaction.
最終更新日
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概要
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.
この相互作用をわかりやすく説明すると
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.
なぜ起こるのか
CYP3A4 and P-glycoprotein inhibition by clarithromycin alters irinotecan disposition and increases toxic exposure.
対処法
Choose a non-interacting antibiotic where possible. If clarithromycin is required, monitor closely for severe diarrhea and myelosuppression and adjust irinotecan as needed.
薬剤師に尋ねること
- 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?
Pro+会員向け
ページ全体を見る
アカウントを作成してPro+トライアルを始めると、ClarithromycinとIrinotecan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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Clarithromycinのその他の相互作用
Irinotecanのその他の相互作用
よくある質問
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.
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。
