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Medicines folic acidQuestion & answer

folic acid · Medicine question

Can folic acid affect epilepsy medicines?

iatroX medicinesPublished 13 August 2026Reviewed 13 August 2026

The answer

Answer

It can lower concentrations of some antiepileptics and reduce seizure control, so the epilepsy prescriber should know it is being taken.

Sources for this answer

Folic acid Colonis 1mg/ml oral solutionemc · SmPC Current selected SmPC · Version 4
Folic Acid 5 mg Tablets 28's (POM) (PL 43461/0091)emc · SmPC Current selected SmPC · Version 1

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The full medicine guide

folic acid

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