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Interactions médicamenteuses

Sodium valproate + Vorinostat

Gravité: Majeure

Sodium valproate and Vorinostat: major interaction.

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Résumé

Valproate has HDAC inhibitory activity and, when combined with vorinostat, has been associated with severe thrombocytopenia and gastrointestinal bleeding. This is a serious hematologic toxicity.

Ce que signifie cette interaction, en termes simples

Sodium valproate and Vorinostat 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.

Sodium valproate belongs to Central Nervous System; Vorinostat belongs to Oncology.

Niveau de preuve: Moderate

Pourquoi elle survient

Additive HDAC inhibition and bone marrow suppression, with consequent thrombocytopenia.

Conduite à tenir

Avoid the combination where possible. If used, monitor platelet counts every 2 weeks for the first 2 months and watch for bleeding, adjusting or stopping therapy if counts fall.

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 Sodium valproate with Vorinostat?

MediHelp rates the interaction as major. Sodium valproate and Vorinostat 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. Valproate has HDAC inhibitory activity and, when combined with vorinostat, has been associated with severe thrombocytopenia and gastrointestinal bleeding. This is a serious hematologic toxicity.

How serious is the interaction between Sodium valproate and Vorinostat?

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 the combination where possible. If used, monitor platelet counts every 2 weeks for the first 2 months and watch for bleeding, adjusting or stopping therapy if counts fall.

What other medicines interact with Vorinostat?

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

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