藥物交互作用
Atazanavir + Irinotecan
嚴重程度: 嚴重
Atazanavir and Irinotecan: major interaction.
最後更新
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摘要
Atazanavir inhibits UGT1A1 and CYP3A4, which handle SN-38 glucuronidation and irinotecan oxidation. SN-38 exposure may rise, increasing severe diarrhea and neutropenia.
用白話說明這項交互作用的意義
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.
為什麼會發生
Inhibition of UGT1A1-mediated SN-38 glucuronidation and CYP3A4 metabolism increases active SN-38 exposure.
處置方式
Avoid the combination; use an alternative antiretroviral if feasible. If unavoidable, monitor closely for diarrhea and neutropenia and consider irinotecan dose reduction.
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?
Irinotecan 的其他交互作用
Atazanavir 的其他交互作用
常見問題
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.
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。
