Hi practo user, most medications used for epilepsy may affect the growth of the baby. However oxetol is one with minimum risk. It's best to inform the neurologist who is managing your wife's epilepsy treatment and also the gynaecologist about her condition and medications. Stopping the epilepsy medicine is risky and if the growth of the baby is normal as per sonography it is best to continue the medications, as a seizure during pregnancy could be more harmful to the mother and baby. I am sure if you inform the gynaecologist they will keep a close watch on the baby's growth and mother's health. Hope you find this helpful. Wish you and your family good health.