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Interazioni tra farmaci

Amitriptyline + Dacomitinib

Gravità: Maggiore

Amitriptyline and Dacomitinib: major interaction.

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Sintesi

Dacomitinib is a strong CYP2D6 inhibitor and can substantially raise amitriptyline concentrations. This may increase anticholinergic effects, sedation, QT prolongation and arrhythmia risk.

Cosa significa questa interazione in parole semplici

Amitriptyline and Dacomitinib 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; Dacomitinib belongs to Oncology.

Livello di evidenza: Moderate

Perché avviene

Dacomitinib inhibits CYP2D6, reducing the metabolism of amitriptyline and its active metabolite.

Cosa fare

Avoid if possible or reduce the amitriptyline dose and monitor for toxicity. Check an ECG and consider tricyclic levels in higher-risk patients.

Cosa chiedere al farmacista

  • 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?

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

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Domande frequenti

Can I take Amitriptyline with Dacomitinib?

MediHelp rates the interaction as major. Amitriptyline and Dacomitinib 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 is a strong CYP2D6 inhibitor and can substantially raise amitriptyline concentrations. This may increase anticholinergic effects, sedation, QT prolongation and arrhythmia risk.

How serious is the interaction between Amitriptyline and Dacomitinib?

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 if possible or reduce the amitriptyline dose and monitor for toxicity. Check an ECG and consider tricyclic levels in higher-risk patients.

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.

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