If you are considering taking or already taking oral contraception, you should discuss this with your doctor.

Contraception

Some anti-seizure medications interfere with the metabolism of the oral contraceptive pill making it less effective. This can lead to “pill failure” and possibly pregnancy.

Similarly, levels of anti-seizure medications can also change when taking some oral contraceptive pills. It is important to discuss this with your neurologist who can adjust the dose of to reduce the risk of having seizures

Pregnancy

It is important to plan your pregnancy with the help of your general practitioner, obstetrician and your general paediatrician / neurologist.

Some medications can affect the baby inside the womb. It is important to discuss all anti-seizure medication in advance with your doctor before falling pregnant. Your doctors can adjust your medications if needed to help minimise the risks to you and your baby.

• Sodium valproate in particular has been associated with significant concerns of teratogenicity (e.g. malformations, cognitive impairment, and autistic spectrum disorder in the baby).
• Risk increases with higher doses.
• It is important clinicians and women of childbearing age are aware of this risk.

Folate supplementation preconception is recommended for all women planning a pregnancy. 

If you find you are pregnant unexpectedly, it is important you do not stop your medication. You should make an appointment to see your doctor as soon as possible. The risks to your baby from uncontrolled seizures are far higher than any associated with your medicines. 

Read more about women's issues in Epilepsy Action Australia