Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/2/2025

Management of Epilepsy in Pregnancy

Initial Counseling Approach

  • The American College of Obstetricians and Gynecologists recommends providing nondirective counseling regarding potential risks and benefits of pregnancy continuation, including short- and long-term implications of her epilepsy and current medication regimen 1, 2
  • Women with epilepsy have approximately a one-third chance of experiencing increased seizures during pregnancy, according to the American Academy of Neurology 3
  • The American Academy of Neurology also states that women with epilepsy have an increased risk of congenital anomalies, regardless of medication status 3
  • Addressing fears about pregnancy loss directly, acknowledging that these concerns are valid while providing evidence-based information about actual risks is recommended by the American College of Obstetricians and Gynecologists 2

Medication Management If Pregnancy Continues

  • The American Academy of Neurology recommends immediate medication adjustment to reduce teratogenic risk while maintaining seizure control, considering transitioning from valproate to medications with better pregnancy safety profiles such as levetiracetam or lamotrigine 3, 4
  • The American Academy of Neurology suggests aiming for monotherapy if possible, as polytherapy increases teratogenic risk, and using the lowest effective doses of medications when treatment is necessary 3, 4

Prenatal Care Recommendations

  • The American College of Obstetricians and Gynecologists recommends prescribing high-dose folic acid supplementation (4 mg daily) immediately and continuing through the first trimester to reduce the risk of neural tube defects 3
  • Frequent monitoring of serum drug levels throughout pregnancy is recommended by the American Academy of Neurology due to physiological changes that affect drug metabolism 3
  • The American College of Obstetricians and Gynecologists suggests arranging a consultation with a maternal-fetal medicine specialist and neurologist for coordinated care 2

Risk Mitigation Strategies

  • The American Academy of Neurology recommends counseling on the importance of medication adherence despite concerns about fetal effects, as uncontrolled seizures pose greater risks to both mother and fetus 3
  • The British Medical Association encourages participation in moderate physical activity according to general pregnancy guidelines for women with well-controlled epilepsy 5
  • The British Medical Association advises on safety precautions to minimize the risk of injury during potential seizures 5

Follow-up Plan

  • The American College of Obstetricians and Gynecologists recommends scheduling more frequent prenatal visits to monitor both seizure control and pregnancy progression 1, 2
  • The American College of Obstetricians and Gynecologists suggests arranging for continuous risk assessment throughout pregnancy as health status may change 2
  • The American College of Obstetricians and Gynecologists recommends planning for specialized care during labor and delivery with appropriate monitoring 1

Common Pitfalls to Avoid

  • The American Academy of Neurology warns against abruptly stopping antiepileptic medications due to pregnancy concerns, which can lead to breakthrough seizures with potentially catastrophic consequences 3
  • The American Academy of Neurology advises against failing to adjust medication doses in response to pregnancy-related pharmacokinetic changes 3
  • The American College of Obstetricians and Gynecologists recommends not overlooking the psychological impact of managing a chronic condition during pregnancy 2
  • The American College of Obstetricians and Gynecologists suggests providing adequate information about both maternal and fetal risks of continued treatment versus risks of uncontrolled epilepsy 1, 2

Managing Seizure Medications During Pregnancy

Medication Selection and Optimization

  • Valproate must be avoided due to elevated risk of fetal malformations, particularly at doses above 800 mg/day, and phenytoin, carbamazepine, and phenobarbital are teratogenic and should be avoided when equally effective alternatives exist, according to the American Academy of Family Physicians 6
  • The American Academy of Family Physicians recommends aiming for monotherapy at the lowest effective dose whenever possible, as polytherapy increases teratogenic risk 6

Labor, Delivery, and Postpartum

  • The American Heart Association recommends activating emergency medical services for pregnant individuals experiencing seizures, as this represents a critical medical emergency, and seizures lasting >5 minutes require immediate intervention 7