Mazetol (carbamazepine) does not directly affect your ability to conceive, though it can make hormonal contraceptives less effective. Regarding pregnancy, Mazetol carries an increased risk of birth defects, particularly neural tube defects. However, with careful medical supervision, you can absolutely have a healthy baby. You must not stop taking Mazetol suddenly, as uncontrolled seizures pose a major risk to both you and your baby. Please consult your doctor before trying to conceive. They will likely prescribe a high dose of folic acid (5 mg) to take before pregnancy and may adjust your treatment to the safest possible dosage.