Mixture of 5 parts of Sulfamethoxazole and 1 part of Trimethoprim. See info on items separately. Trimethoprim is excreted into breast milk at 4 to 10% of corrected pediatric dose. No adverse effects have been shown in breastfed infants. Used for treatment of infants older than one month. Sulfamethoxazole is excreted in low levels into breast milk.No adverse effects have been shown in breastfed infants. Cautious use for treatment of premature infants with hyperbilirubinemia 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 and diarrheal disease due to intestinal flora imbalance. The American Academy of Pediatrics rates it compatible with breastfeeding. Eleventh WHO Model List of Essential Drugs 2002: Compatible with breastfeeding for older, healthy full- term infants. See below the information of these related products: