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Interactions médicamenteuses

Amiodarone + Carvedilol

Gravité: Majeure

Amiodarone and Carvedilol: major interaction.

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Résumé

Amiodarone inhibits CYP2D6 and CYP2C9 and raises carvedilol exposure. Both drugs slow heart rate and AV conduction, so bradycardia, heart block and hypotension may occur.

Ce que signifie cette interaction, en termes simples

Amiodarone and Carvedilol 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.

Amiodarone belongs to Cardiovascular; Carvedilol belongs to Cardiovascular.

Niveau de preuve: Moderate

Pourquoi elle survient

Pharmacokinetic inhibition of carvedilol metabolism plus additive negative chronotropic and dromotropic effects.

Conduite à tenir

Monitor ECG and heart rate, particularly at initiation, and start with a low carvedilol dose. Avoid in patients with sinus node dysfunction or conduction disease unless paced.

Questions à poser à votre pharmacien

  • 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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Questions fréquentes

Can I take Amiodarone with Carvedilol?

MediHelp rates the interaction as major. Amiodarone and Carvedilol 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. Amiodarone inhibits CYP2D6 and CYP2C9 and raises carvedilol exposure. Both drugs slow heart rate and AV conduction, so bradycardia, heart block and hypotension may occur.

How serious is the interaction between Amiodarone and Carvedilol?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor ECG and heart rate, particularly at initiation, and start with a low carvedilol dose. Avoid in patients with sinus node dysfunction or conduction disease unless paced.

What other medicines interact with Carvedilol?

MediHelp also lists interactions of Carvedilol with, for example, Albuterol, Amifostine, Arformoterol. The full list is on the Carvedilol page.

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