skip to main content

Lamotrigine and pregnancy — SCE Neurology MCQ

Instant feedback + full explanation. One question, done properly.

HardEpilepsyLamotrigine and pregnancySCE Neurology

A 29-year-old with generalised epilepsy has remained seizure-free only on valproate after two alternatives failed. She plans pregnancy but is still using effective contraception and has not had recent specialist review. Which immediate plan best balances maternal and fetal risk?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: C — Maintain contraception and current treatment while arranging urgent specialist preconception review

Valproate carries major fetal risks, but abrupt or unsupervised withdrawal can cause breakthrough generalised seizures and serious maternal and fetal harm. Therefore she should maintain effective contraception and the current regimen only as a temporary bridge to urgent epilepsy-specialist preconception review. The review must reconsider whether any effective safer regimen can be established and ensure current UK valproate requirements are met. Dose reduction and substitution require planned cross-titration; carbamazepine may also aggravate a generalised epilepsy phenotype.

Reference: MHRA: Valproate — reproductive risks. https://www.gov.uk/guidance/valproate-reproductive-risks NICE NG217: Treating epileptic seizures. https://www.nice.org.uk/guidance/ng217/chapter/5-Treating-epileptic-seizures-in-children-young-people-and-adults