Naproxen Use During Breastfeeding

Safety and Compatibility

• The Association of Anaesthetists (2020) states that naproxen is compatible with breastfeeding; mothers can continue nursing without interruption despite its longer half‑life compared with other NSAIDs. 1
• Only about 1 % of the maternal plasma concentration of naproxen transfers into breast milk, resulting in a milk‑to‑plasma ratio that is low enough to eliminate any need for a waiting period or “pump‑and‑dump” before feeding. 1

Clinical Recommendations

• No interruption of breastfeeding is required after a dose of naproxen; mothers may nurse immediately after taking the medication. 2
• Naproxen is recommended as part of multimodal analgesia for postpartum pain, particularly after caesarean delivery, because it provides effective pain control while remaining safe for the infant. 2
• Prescribing should follow standard NSAID principles: use the lowest effective dose for the shortest necessary duration. 2

Comparison with Other NSAIDs

• Although naproxen has a longer elimination half‑life (≈ 14 hours) than ibuprofen or diclofenac, this does not preclude its safe use during lactation. 1
• Ibuprofen, diclofenac, and naproxen are all considered safe and compatible with breastfeeding based on extensive clinical experience. 2

Regulatory Perspective

• The 2020 Association of Anaesthetists guideline, grounded in contemporary evidence and widespread clinical use, supersedes the older FDA label that advises avoidance of naproxen in nursing mothers. The guideline affirms the drug’s safety for breastfeeding. 1