Pregnancy and nursing mothers: There is no adequate experience with carvedilol in pregnant women. Animal reproduction studies have revealed no teratogenic potential for carvedilol. Beta blockers reduce placental perfusion, which may result in intrauterine fetal death, immature and premature deliveries. In addition, adverse effects (especially hypoglycemia and bradycardia) may occur in the fetus and neonate. There is increased risk of cardiac and pulmonary complications in the neonate in the postnatal period. Therefore, carvedilol should not be used during pregnancy. Carvedilol and/or its metabolites are excreted in breast milk. Therefore, breast-feeding is not recommended during administration of carvedilol.