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Medicines valproic acidQuestion & answer

valproic acid · Medicine question

Does valproic acid reduce the effectiveness of hormonal contraceptives?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Valproic acid does not reduce the effectiveness of hormonal contraceptives.

Sources for this answer

Convulex 150 mg CapsulesG.L Pharma UK Limited · emc · SmPC §4.4 Special warnings and precautions for use · Version 7Document updated 27 November 2025

Sources checked 8 November 2026

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valproic acid

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