相互作用
Atazanavir + Irinotecan
重症度: 重大
Atazanavir and Irinotecan: major interaction.
最終更新日
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概要
Atazanavir inhibits UGT1A1 and CYP3A4, which handle SN-38 glucuronidation and irinotecan oxidation. SN-38 exposure may rise, increasing severe diarrhea and neutropenia.
この相互作用をわかりやすく説明すると
Atazanavir 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.
Atazanavir belongs to Anti Virals; Irinotecan belongs to Oncology.
なぜ起こるのか
Inhibition of UGT1A1-mediated SN-38 glucuronidation and CYP3A4 metabolism increases active SN-38 exposure.
対処法
Avoid the combination; use an alternative antiretroviral if feasible. If unavoidable, monitor closely for diarrhea and neutropenia and consider irinotecan dose reduction.
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、Atazanavir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
WebでPro+を14日間無料でお試し。カード登録不要。
Irinotecanのその他の相互作用
Atazanavirのその他の相互作用
よくある質問
Can I take Atazanavir with Irinotecan?
MediHelp rates the interaction as major. Atazanavir 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. Atazanavir inhibits UGT1A1 and CYP3A4, which handle SN-38 glucuronidation and irinotecan oxidation. SN-38 exposure may rise, increasing severe diarrhea and neutropenia.
How serious is the interaction between Atazanavir 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: Avoid the combination; use an alternative antiretroviral if feasible. If unavoidable, monitor closely for diarrhea and neutropenia and consider irinotecan dose reduction.
What other medicines interact with Irinotecan?
MediHelp also lists interactions of Irinotecan with, for example, Clozapine, Sacituzumab govitecan, Adenovirus types 4 and 7 live. The full list is on the Irinotecan 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。
