Excreted in non-significant levels into breast milk. No adverse effects have been shown in breastfed infants. Caution with those neonates suffering of hyperbilirrubinemia or G-6-P-D deficiency is required. Avoid use in affected patients Check-up for infant jaundice. Be aware of false negative results of bacterial cultures when the mother is on antibiotics. American Academy of Pediatrics: Maternal Medication Usually Compatible With Breastfeeding.Eleventh WHO Model List of Essential Drugs 2002: Compatible with breastfeeding.