相互作用
Memantine-donepezil + Thioridazine
重症度: 併用禁忌
Memantine-donepezil and Thioridazine: contraindicated interaction.
最終更新日
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概要
Donepezil can prolong the QT interval and cause torsades de pointes, and thioridazine is a strongly QT-prolonging antipsychotic. Together the arrhythmia risk is increased. Donepezil-induced bradycardia adds to the risk.
この相互作用をわかりやすく説明すると
Memantine-donepezil and Thioridazine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Memantine-donepezil belongs to Central Nervous System; Thioridazine belongs to Central Nervous System.
なぜ起こるのか
Additive QT prolongation, with cholinesterase-inhibitor bradycardia increasing torsades susceptibility.
対処法
Avoid the combination; choose a non-QT-prolonging antipsychotic such as low-dose quetiapine if needed, with ECG monitoring.
薬剤師に尋ねること
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
Pro+会員向け
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アカウントを作成してPro+トライアルを始めると、Memantine-donepezilとThioridazine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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Memantine-donepezilのその他の相互作用
Thioridazineのその他の相互作用
よくある質問
Can I take Memantine-donepezil with Thioridazine?
MediHelp rates the interaction as contraindicated. Memantine-donepezil and Thioridazine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Donepezil can prolong the QT interval and cause torsades de pointes, and thioridazine is a strongly QT-prolonging antipsychotic. Together the arrhythmia risk is increased. Donepezil-induced bradycardia adds to the risk.
How serious is the interaction between Memantine-donepezil and Thioridazine?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination; choose a non-QT-prolonging antipsychotic such as low-dose quetiapine if needed, with ECG monitoring.
What other medicines interact with Memantine-donepezil?
MediHelp also lists interactions of Memantine-donepezil with, for example, Dronedarone, Amantadine, Amiodarone. The full list is on the Memantine-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。
