Interações medicamentosas
Ganaxolone + Phenytoin
Gravidade: Grave
Ganaxolone and Phenytoin: major interaction.
Última atualização Fontes: EMA SmPC
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
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.
O que esta interação significa em palavras 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.
Por que acontece
Phenytoin induces CYP3A4, accelerating ganaxolone metabolism.
O que fazer
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.
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?
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Referências
Outras interações de Phenytoin
- Artemether / lumefantrine + Phenytoin Contraindicada
- Bictegravir + Phenytoin Contraindicada
- Cabotegravir + Phenytoin Contraindicada
- Doravirine + Phenytoin Contraindicada
- Elbasvir / grazoprevir + Phenytoin Contraindicada
- Elvitegravir / cobicistat / emtricitabine / tenofovir df + Phenytoin Contraindicada
Outras interações de Ganaxolone
Perguntas frequentes
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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