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MediHelp Référence médicamenteuse

Interactions médicamenteuses

Ganaxolone + Phenytoin

Gravité: Majeure

Ganaxolone and Phenytoin: major interaction.

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Résumé

Phenytoin can lower ganaxolone concentrations through CYP3A4 induction, potentially reducing seizure control in CDKL5 deficiency disorder. Ganaxolone labeling advises avoiding moderate and strong CYP3A4 inducers.

Ce que signifie cette interaction, en termes simples

Ganaxolone and Phenytoin 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.

Ganaxolone belongs to Central Nervous System; Phenytoin belongs to Central Nervous System.

Niveau de preuve: Moderate

Pourquoi elle survient

Phenytoin induces CYP3A4, accelerating ganaxolone metabolism.

Conduite à tenir

Avoid the combination where possible. If unavoidable, consider increasing the ganaxolone dose within the maximum for the patient's weight and monitor seizure frequency and sedation.

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 Ganaxolone with Phenytoin?

MediHelp rates the interaction as major. Ganaxolone and Phenytoin 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. Phenytoin can lower ganaxolone concentrations through CYP3A4 induction, potentially reducing seizure control in CDKL5 deficiency disorder. Ganaxolone labeling advises avoiding moderate and strong CYP3A4 inducers.

How serious is the interaction between Ganaxolone and Phenytoin?

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 unavoidable, consider increasing the ganaxolone dose within the maximum for the patient's weight and monitor seizure frequency and sedation.

What other medicines interact with Phenytoin?

MediHelp also lists interactions of Phenytoin with, for example, Artemether / lumefantrine, Bictegravir, Cabotegravir. The full list is on the Phenytoin 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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