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Interações medicamentosas

Arsenic trioxide + Granisetron

Gravidade: Grave

Arsenic trioxide and Granisetron: major 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

Arsenic trioxide has a boxed warning for QT prolongation, torsades de pointes and complete AV block. Granisetron can also lengthen the QT interval, so the combination increases arrhythmia risk.

O que esta interação significa em palavras simples

Arsenic trioxide and Granisetron 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.

Arsenic trioxide belongs to Oncology; Granisetron belongs to Gastrointestinal Tract.

Nível de evidência: Moderate

Por que acontece

Additive pharmacodynamic QT prolongation.

O que fazer

Avoid other QT-prolonging drugs where possible and consider an antiemetic with less QT effect. If granisetron is needed, correct potassium and magnesium and monitor ECG throughout arsenic trioxide therapy.

O que perguntar ao farmacêutico

  • 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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Perguntas frequentes

Can I take Arsenic trioxide with Granisetron?

MediHelp rates the interaction as major. Arsenic trioxide and Granisetron 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. Arsenic trioxide has a boxed warning for QT prolongation, torsades de pointes and complete AV block. Granisetron can also lengthen the QT interval, so the combination increases arrhythmia risk.

How serious is the interaction between Arsenic trioxide and Granisetron?

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 other QT-prolonging drugs where possible and consider an antiemetic with less QT effect. If granisetron is needed, correct potassium and magnesium and monitor ECG throughout arsenic trioxide therapy.

What other medicines interact with Granisetron?

MediHelp also lists interactions of Granisetron with, for example, Apomorphine, Amiodarone, Amisulpride. The full list is on the Granisetron page.

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