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MediHelp Référence médicamenteuse

Interactions médicamenteuses

Amiodarone + Betaxolol

Gravité: Majeure

Amiodarone and Betaxolol: major interaction.

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Résumé

Both drugs slow sinus rate and AV conduction, and combining them can cause marked bradycardia, AV block or sinus arrest. The risk is highest in patients with existing conduction disease or at initiation.

Ce que signifie cette interaction, en termes simples

Amiodarone and Betaxolol 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; Betaxolol belongs to Cardiovascular.

Niveau de preuve: High

Pourquoi elle survient

Additive negative chronotropic and dromotropic effects, with amiodarone's beta-blocking and calcium-channel-like actions adding to beta-1 blockade.

Conduite à tenir

Monitor ECG and heart rate closely when starting the combination and reduce the betaxolol dose if bradycardia occurs. Avoid in patients with significant conduction disease unless a pacemaker is in place.

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 Betaxolol?

MediHelp rates the interaction as major. Amiodarone and Betaxolol 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. Both drugs slow sinus rate and AV conduction, and combining them can cause marked bradycardia, AV block or sinus arrest. The risk is highest in patients with existing conduction disease or at initiation.

How serious is the interaction between Amiodarone and Betaxolol?

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 closely when starting the combination and reduce the betaxolol dose if bradycardia occurs. Avoid in patients with significant conduction disease unless a pacemaker is in place.

What other medicines interact with Betaxolol?

MediHelp also lists interactions of Betaxolol with, for example, Acebutolol, Aldesleukin, Amifostine. The full list is on the Betaxolol page.

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