相互作用
Ibutilide + Methadone
重症度: 併用禁忌
Ibutilide and Methadone: contraindicated interaction.
最終更新日
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概要
Ibutilide markedly prolongs repolarization and causes torsades de pointes; adding methadone, which also prolongs QT, further raises this risk. The arrhythmia can be rapid and fatal.
この相互作用をわかりやすく説明すると
Ibutilide and Methadone 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.
Ibutilide belongs to Cardiovascular; Methadone belongs to Musculoskeletal.
なぜ起こるのか
Additive pharmacodynamic QT prolongation via potassium channel (hERG) blockade.
対処法
Do not give together; use an alternative rhythm-control strategy such as electrical cardioversion if appropriate. If methadone cannot be withheld, ensure continuous ECG monitoring and correct electrolytes, accepting substantial risk.
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
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、IbutilideとMethadone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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Methadoneのその他の相互作用
Ibutilideのその他の相互作用
よくある質問
Can I take Ibutilide with Methadone?
MediHelp rates the interaction as contraindicated. Ibutilide and Methadone 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. Ibutilide markedly prolongs repolarization and causes torsades de pointes; adding methadone, which also prolongs QT, further raises this risk. The arrhythmia can be rapid and fatal.
How serious is the interaction between Ibutilide and Methadone?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not give together; use an alternative rhythm-control strategy such as electrical cardioversion if appropriate. If methadone cannot be withheld, ensure continuous ECG monitoring and correct electrolytes, accepting substantial risk.
What other medicines interact with Methadone?
MediHelp also lists interactions of Methadone with, for example, Alvimopan, Calcium / magnesium / potassium / sodium oxybates, Droperidol. The full list is on the Methadone 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。
