Topamax and Pregnancy and Nursing

Pregnancy Category C

There are no adequate studies on the effects of Topamax in pregnant women. In animals, pregnant animals treated with Topamax had some babies with problems. That’s why you should only use Topamax during pregnancy if the potential benefit is greater than the potential risk to your unborn child. If you are pregnant, or think you might be pregnant, talk to your doctor about using Topamax. You can also check to see if there is a Topamax pregnancy exposure registry for this medicine. The Food and Drug Administration has a list of pregnancy exposure registries that pregnant women can join.

You may also want to join the North American Drug Pregnancy Registry. This has been established to help experts learn more about how anti-epileptic drugs including Topamax may affect pregnant women and their babies. You or your healthcare provider can report information to this registry by calling 1-888-233-2334. Visit for more information on this registry.


Taking Topamax While Breast Feeding

Topamax is carried in human breast milk. It is not known what the effect of Topamax may be in infants who drink breast milk that contains Topamax. Because Topamax could harm your baby, you should not breast feed while you are taking Topamax. It is important that women do not stop breast feeding unnecessarily. Talk with your doctor about whether you should take a different medicine if you would like to breast feed your baby.

Written & reviewed by: Lisa Erwin R.Ph. CGP | Last review date: Dec 2010. Click the References Link below for a complete list of references.

Written & reviewed by: Lisa Erwin R.Ph. CGP | Last review date: Dec 2010.
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