相互作用
Dacomitinib + Flecainide
重症度: 重大
Dacomitinib and Flecainide: major interaction.
最終更新日
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概要
Dacomitinib strongly inhibits CYP2D6, which is a main route of flecainide metabolism. Flecainide levels may therefore rise, increasing the risk of conduction abnormalities and proarrhythmia because it has a narrow therapeutic index.
この相互作用をわかりやすく説明すると
Dacomitinib and Flecainide 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.
Dacomitinib belongs to Oncology; Flecainide belongs to Cardiovascular.
なぜ起こるのか
Dacomitinib inhibits CYP2D6, reducing flecainide clearance.
対処法
Avoid the combination where possible. If it cannot be avoided, monitor the ECG and flecainide plasma concentrations, and reduce the flecainide dose as needed.
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、DacomitinibとFlecainide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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Flecainideのその他の相互作用
Dacomitinibのその他の相互作用
よくある質問
Can I take Dacomitinib with Flecainide?
MediHelp rates the interaction as major. Dacomitinib and Flecainide 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. Dacomitinib strongly inhibits CYP2D6, which is a main route of flecainide metabolism. Flecainide levels may therefore rise, increasing the risk of conduction abnormalities and proarrhythmia because it has a narrow therapeutic index.
How serious is the interaction between Dacomitinib and Flecainide?
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 it cannot be avoided, monitor the ECG and flecainide plasma concentrations, and reduce the flecainide dose as needed.
What other medicines interact with Flecainide?
MediHelp also lists interactions of Flecainide with, for example, Nirmatrelvir, Nirmatrelvir / ritonavir, Pimozide. The full list is on the Flecainide 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。
