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相互作用

Amitriptyline + Thioridazine

重症度: 併用禁忌

Amitriptyline and Thioridazine: contraindicated interaction.

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概要

Thioridazine is a strong QT-prolonging antipsychotic, and amitriptyline adds further QT and conduction effects. The combination markedly increases the risk of torsades de pointes and sudden cardiac death.

この相互作用をわかりやすく説明すると

Amitriptyline 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.

Amitriptyline belongs to Central Nervous System; Thioridazine belongs to Central Nervous System.

エビデンスレベル: Moderate

なぜ起こるのか

Additive QT prolongation, with thioridazine also inhibiting CYP2D6 and raising amitriptyline levels.

対処法

Do not combine these drugs; select an alternative antipsychotic or antidepressant with less cardiac liability.

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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アカウントを作成してPro+トライアルを始めると、Amitriptyline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。

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  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

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よくある質問

Can I take Amitriptyline with Thioridazine?

MediHelp rates the interaction as contraindicated. Amitriptyline 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. Thioridazine is a strong QT-prolonging antipsychotic, and amitriptyline adds further QT and conduction effects. The combination markedly increases the risk of torsades de pointes and sudden cardiac death.

How serious is the interaction between Amitriptyline 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: Do not combine these drugs; select an alternative antipsychotic or antidepressant with less cardiac liability.

What other medicines interact with Amitriptyline?

MediHelp also lists interactions of Amitriptyline with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Amitriptyline 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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