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Interações medicamentosas

Amiodarone + Guanfacine

Gravidade: Moderada

Amiodarone and Guanfacine: moderate interaction.

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Para profissionais de saúde — apenas referência. Esta página é um resumo breve, não é aconselhamento médico nem substitui a bula oficial ou o julgamento clínico. Verifique sempre antes de prescrever ou dispensar.

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Resumo

Amiodarone may increase guanfacine concentrations, and both agents can slow the heart rate and lower blood pressure. This increases the risk of bradycardia, hypotension and sedation.

O que esta interação significa em palavras simples

Amiodarone and Guanfacine 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.

Amiodarone belongs to Cardiovascular; Guanfacine belongs to Cardiovascular.

Nível de evidência: Moderate

Por que acontece

CYP3A4 inhibition by amiodarone raising guanfacine levels, with additive bradycardic and hypotensive effects.

O que fazer

Reduce extended-release guanfacine to half the usual dose as labeled and monitor heart rate and blood pressure. Titrate on tolerability.

O que perguntar ao farmacêutico

  • 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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Perguntas frequentes

Can I take Amiodarone with Guanfacine?

MediHelp rates the interaction as moderate. Amiodarone and Guanfacine 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. Amiodarone may increase guanfacine concentrations, and both agents can slow the heart rate and lower blood pressure. This increases the risk of bradycardia, hypotension and sedation.

How serious is the interaction between Amiodarone and Guanfacine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Reduce extended-release guanfacine to half the usual dose as labeled and monitor heart rate and blood pressure. Titrate on tolerability.

What other medicines interact with Amiodarone?

MediHelp also lists interactions of Amiodarone with, for example, Amisulpride, Arsenic trioxide, Dofetilide. The full list is on the Amiodarone page.

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