Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 6/19/2025

Medication Use During Breastfeeding

General Guidelines

  • The American Academy of Pediatrics recommends that most medications are compatible with breastfeeding, and the benefits of breastfeeding often outweigh the risks of temporary medication use 3
  • The American Academy of Pediatrics suggests consulting reliable resources like the LactMed database for specific medication information 3
  • It is generally recommended that the benefits of continuing breastfeeding outweigh the minimal risk of medication exposure through breast milk, especially with commonly used medications 4

Oxymetazoline (Afrin) Nasal Spray

  • The American College of Allergy, Asthma, and Immunology recommends using oxymetazoline nasal spray for no more than 3 days to avoid rhinitis medicamentosa (rebound congestion), and breastfeeding can continue immediately after use 1
  • Due to minimal systemic absorption, breastfeeding can continue immediately after using oxymetazoline nasal spray, with no waiting period required 1

Acetaminophen (Tylenol) Use

  • The American Society of Anesthesiologists considers acetaminophen a widely used and safe analgesic during lactation, with no waiting period required for breastfeeding 2
  • It is recommended to take the lowest effective dose of acetaminophen and consider using single-ingredient products when possible to minimize exposure to unnecessary medications 2

Potential Risks and Considerations

  • Extended use of oxymetazoline nasal spray for more than 3 days can lead to rebound congestion, according to the American College of Allergy, Asthma, and Immunology 1
  • Unnecessarily interrupting breastfeeding can disrupt the breastfeeding relationship and milk supply, and assuming all cold medications require pumping and dumping is not recommended 4