Valproate and pregnancy
Reproductive risks and safety advice
This information explains what the medication valproate is, what it is used for, and the risks linked to taking it during pregnancy. It covers possible effects on children and advice for people who may become pregnant. It also includes information for men taking valproate, and where to get support and further advice. If you are 18 or over and live in England, this is for you. It takes about 8 minutes to read.
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The key points
- Valproate is a medicine used to treat bipolar disorder and epilepsy and sometimes prevent migraines.
- Valproate should not normally be taken during pregnancy because it can harm an unborn baby.
- Do not stop taking valproate or change your dose without specialist advice. If you think you are pregnant, seek urgent medical advice.
- People under 55 should only be prescribed valproate under specific safety rules.
- Babies exposed to valproate during pregnancy may have a birth defect. They may have long-term learning or development difficulties and there are other risks.
- People who could become pregnant must follow the Pregnancy prevention programme and review the risks every year.
- Men taking valproate should discuss the benefits and risks with a healthcare professional before starting a family.
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© Rethink Mental Illness 2026
Last updated November 2026
Next update November 2029, subject to any changes
Version number 1