相互作用
Amoxapine + Donepezil
重症度: 重大
Amoxapine and Donepezil: major interaction.
最終更新日
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概要
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.
この相互作用をわかりやすく説明すると
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.
なぜ起こるのか
Additive QT prolongation, plus pharmacodynamic opposition of cholinesterase inhibition by antimuscarinic effects.
対処法
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.
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、AmoxapineとDonepezil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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Donepezilのその他の相互作用
よくある質問
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.
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。
