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Interactions médicamenteuses

Andexanet alfa + Heparin

Gravité: Majeure

Andexanet alfa and Heparin: major interaction.

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Résumé

After andexanet alfa, unfractionated heparin may be unresponsive, with activated clotting times not prolonging as expected. This can lead to inadequate anticoagulation, for example during procedures.

Ce que signifie cette interaction, en termes simples

Andexanet alfa and Heparin 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.

Andexanet alfa belongs to Cardiovascular; Heparin belongs to Cardiovascular.

Niveau de preuve: High

Pourquoi elle survient

Andexanet alfa binds heparin-antithrombin complexes, neutralizing heparin's anticoagulant effect.

Conduite à tenir

Do not use unfractionated heparin after andexanet alfa; select an alternative anticoagulant if one is needed.

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 Andexanet alfa with Heparin?

MediHelp rates the interaction as major. Andexanet alfa and Heparin 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. After andexanet alfa, unfractionated heparin may be unresponsive, with activated clotting times not prolonging as expected. This can lead to inadequate anticoagulation, for example during procedures.

How serious is the interaction between Andexanet alfa and Heparin?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use unfractionated heparin after andexanet alfa; select an alternative anticoagulant if one is needed.

What other medicines interact with Heparin?

MediHelp also lists interactions of Heparin with, for example, Defibrotide, Ketorolac, Oritavancin. The full list is on the Heparin page.

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Ouvrez le référentiel complet, vérifiez les interactions entre plusieurs médicaments et utilisez les outils de posologie dans l'application MediHelp.

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