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Interactions médicamenteuses

Amitriptyline + Benztropine

Gravité: Modérée

Amitriptyline and Benztropine: moderate interaction.

Dernière mise à jour

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Résumé

Both drugs are strongly anticholinergic, so combined use can cause marked dry mouth, constipation, urinary retention, blurred vision, confusion and tachycardia. Elderly patients are at risk of delirium, paralytic ileus and heat intolerance.

Ce que signifie cette interaction, en termes simples

Amitriptyline and Benztropine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

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

Niveau de preuve: Moderate

Pourquoi elle survient

Additive blockade of muscarinic acetylcholine receptors.

Conduite à tenir

Monitor for anticholinergic toxicity, especially cognitive effects, urinary retention and constipation. Use the lowest effective doses and review whether benztropine is still needed.

Questions à poser à votre pharmacien

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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

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Questions fréquentes

Can I take Amitriptyline with Benztropine?

MediHelp rates the interaction as moderate. Amitriptyline and Benztropine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both drugs are strongly anticholinergic, so combined use can cause marked dry mouth, constipation, urinary retention, blurred vision, confusion and tachycardia. Elderly patients are at risk of delirium, paralytic ileus and heat intolerance.

How serious is the interaction between Amitriptyline and Benztropine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for anticholinergic toxicity, especially cognitive effects, urinary retention and constipation. Use the lowest effective doses and review whether benztropine is still needed.

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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