It is excreted into breast milk in non-significant amounts, without side-effects being reported in breastfed infants of treated mothers. Plasma levels among breastfed infants have been very low or undetectable. When used during pregnancy it has been associated to the Phenomenon of Reynaud in the nipple and a higher risk for neonatal hypoglycemia. The American Academy of Pediatrics rates it as commonly compatible with breastfeeding.