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相互作用

Mexiletine + Pimozide

重症度: 併用禁忌

Mexiletine and Pimozide: contraindicated interaction.

最終更新日

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このページの臨床コンテンツは英語でのみ提供されています。

概要

Mexiletine is a class IB antiarrhythmic with proarrhythmic potential and is metabolized by CYP2D6 and CYP1A2, while pimozide strongly prolongs QT. Combined use raises the risk of torsades de pointes and ventricular arrhythmias.

この相互作用をわかりやすく説明すると

Mexiletine and Pimozide 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.

Mexiletine belongs to Cardiovascular; Pimozide belongs to Central Nervous System.

エビデンスレベル: Low

なぜ起こるのか

Additive proarrhythmic and QT-prolonging effects.

対処法

Avoid the combination and select an alternative antiarrhythmic or antipsychotic. Obtain an ECG if exposure has occurred.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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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、MexiletineとPimozide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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よくある質問

Can I take Mexiletine with Pimozide?

MediHelp rates the interaction as contraindicated. Mexiletine and Pimozide 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. Mexiletine is a class IB antiarrhythmic with proarrhythmic potential and is metabolized by CYP2D6 and CYP1A2, while pimozide strongly prolongs QT. Combined use raises the risk of torsades de pointes and ventricular arrhythmias.

How serious is the interaction between Mexiletine and Pimozide?

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 and select an alternative antiarrhythmic or antipsychotic. Obtain an ECG if exposure has occurred.

What other medicines interact with Mexiletine?

MediHelp also lists interactions of Mexiletine with, for example, Fezolinetant, Alosetron, Amiodarone. The full list is on the Mexiletine 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。

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