Drug interactions
Ethotoin + Folic acid
Severity: Moderate
Ethotoin and Folic acid: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Folic acid, particularly at high doses, may lower serum levels of hydantoin anticonvulsants and could reduce seizure control. This is described mainly for phenytoin and is extrapolated to ethotoin.
What this interaction means in plain words
Ethotoin and Folic acid can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Folate may enhance hydantoin metabolism; the mechanism is not firmly established and is extrapolated from phenytoin.
What to do
Monitor seizure control when starting or increasing folic acid. Check anticonvulsant levels if breakthrough seizures occur.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Folic acid
- Folic acid + Fosphenytoin Moderate
- Folic acid + Glucarpidase Moderate
- Folic acid + Methotrexate Moderate
- Folic acid + Pafolacianine Moderate
- Folic acid + Phenobarbital Moderate
- Folic acid + Phenytoin Moderate
Frequently asked questions
Can I take Ethotoin with Folic acid?
MediHelp rates the interaction as moderate. Ethotoin and Folic acid can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Folic acid, particularly at high doses, may lower serum levels of hydantoin anticonvulsants and could reduce seizure control. This is described mainly for phenytoin and is extrapolated to ethotoin.
How serious is the interaction between Ethotoin and Folic acid?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor seizure control when starting or increasing folic acid. Check anticonvulsant levels if breakthrough seizures occur.
What other medicines interact with Folic acid?
MediHelp also lists interactions of Folic acid with, for example, Fosphenytoin, Glucarpidase, Methotrexate. The full list is on the Folic acid page.
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