藥物交互作用
Amoxapine + Donepezil
嚴重程度: 嚴重
Amoxapine and Donepezil: major interaction.
最後更新
僅供醫療專業人員參考。本頁為簡要摘要，並非醫療建議，亦不能取代官方仿單或臨床判斷。開立處方或調劑前請務必核實。
本頁的臨床內容僅提供英文版。
摘要
Donepezil has a known risk of QT prolongation and torsades de pointes, and amoxapine, a tricyclic-related antidepressant, can also prolong the QT interval. Combined use may raise arrhythmia risk, especially with electrolyte disturbance or cardiac disease. Amoxapine's anticholinergic activity may also oppose donepezil's cholinergic benefit.
用白話說明這項交互作用的意義
Amoxapine and Donepezil 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.
為什麼會發生
Additive QT prolongation, plus pharmacodynamic opposition of cholinesterase inhibition by antimuscarinic effects.
處置方式
Avoid the combination where possible; if used, obtain a baseline ECG, correct potassium and magnesium, and monitor the QTc. Consider an antidepressant with less QT and anticholinergic liability.
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?
Donepezil 的其他交互作用
常見問題
Can I take Amoxapine with Donepezil?
MediHelp rates the interaction as major. Amoxapine and Donepezil 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. Donepezil has a known risk of QT prolongation and torsades de pointes, and amoxapine, a tricyclic-related antidepressant, can also prolong the QT interval. Combined use may raise arrhythmia risk, especially with electrolyte disturbance or cardiac disease. Amoxapine's anticholinergic activity may also oppose donepezil's cholinergic benefit.
How serious is the interaction between Amoxapine and Donepezil?
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 where possible; if used, obtain a baseline ECG, correct potassium and magnesium, and monitor the QTc. Consider an antidepressant with less QT and anticholinergic liability.
What other medicines interact with Donepezil?
MediHelp also lists interactions of Donepezil with, for example, Dronedarone, Pimozide, Thioridazine. The full list is on the Donepezil page.
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