藥物交互作用
Amitriptyline + Formoterol
嚴重程度: 嚴重
Amitriptyline and Formoterol: major interaction.
最後更新
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摘要
Amitriptyline and formoterol can each prolong the QT interval, and tricyclics also potentiate adrenergic cardiovascular effects. Together they may cause tachycardia and ventricular arrhythmias, particularly in patients with heart disease.
用白話說明這項交互作用的意義
Amitriptyline and Formoterol 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.
Amitriptyline belongs to Central Nervous System; Formoterol belongs to Respiratory.
為什麼會發生
Additive QT prolongation and tricyclic-mediated potentiation of beta-agonist adrenergic effects via norepinephrine reuptake blockade.
處置方式
Obtain a baseline ECG and monitor QTc, heart rate and potassium. Avoid in patients with long QT or significant cardiac disease where alternatives exist.
可向藥師詢問的問題
- 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?
Formoterol 的其他交互作用
Amitriptyline 的其他交互作用
常見問題
Can I take Amitriptyline with Formoterol?
MediHelp rates the interaction as major. Amitriptyline and Formoterol 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. Amitriptyline and formoterol can each prolong the QT interval, and tricyclics also potentiate adrenergic cardiovascular effects. Together they may cause tachycardia and ventricular arrhythmias, particularly in patients with heart disease.
How serious is the interaction between Amitriptyline and Formoterol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and monitor QTc, heart rate and potassium. Avoid in patients with long QT or significant cardiac disease where alternatives exist.
What other medicines interact with Formoterol?
MediHelp also lists interactions of Formoterol with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Formoterol page.
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