- Drugs and Lactation Database (LactMed): Naproxen [BOOK]Drugs and Lactation Database (LactMed). National Library of Medicine (US): Bethesda (MD)BOOK
- Limited information indicates that levels of naproxen in breastmilk are low and adverse effects in breastfed infants are apparently uncommon. However, because of naproxen's long half-life and reported serious adverse reaction in a breastfed neonate, other agents may be preferred while nursing a newborn or preterm infant.