What medications for gastritis are safe during lactation (breastfeeding)?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: October 8, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

Medications for Gastritis Safe During Lactation

Several medications for gastritis are safe during breastfeeding, including antacids, sucralfate, most H2-receptor antagonists, and proton pump inhibitors. 1

Safe First-Line Options

  • Antacids (calcium carbonate, aluminum hydroxide): These are minimally absorbed systemically and considered safe during breastfeeding 1
  • Sucralfate: Not absorbed systemically, making it a safe option for nursing mothers 1
  • H2-receptor antagonists:
    • Famotidine and nizatidine are preferred H2-blockers as they are excreted into breast milk to a lesser extent than cimetidine or ranitidine 1
    • Cimetidine is specifically listed by the American Academy of Pediatrics as compatible with breastfeeding, though it transfers into milk more than other H2-blockers 1

Proton Pump Inhibitors (PPIs)

  • Most PPIs are considered compatible with breastfeeding due to:
    • Low oral bioavailability in infants 2
    • Minimal transfer into breast milk 3
    • Short half-lives that limit infant exposure 2

Anti-inflammatory Medications

  • Low-dose corticosteroids (prednisone <20 mg daily) are compatible with breastfeeding 4
  • For doses ≥20 mg daily, it's recommended to delay breastfeeding or discard breast milk accumulated in the 4 hours following administration 4
  • NSAIDs are conditionally recommended as compatible with breastfeeding for short-term use 4
    • Ibuprofen is preferred for long-term treatment due to its short half-life and lack of active metabolites 5

Antibiotics for H. pylori-Associated Gastritis

  • Amoxicillin/clavulanic acid is safe during breastfeeding based on limited human data 4
  • Macrolides (clarithromycin, azithromycin):
    • Generally considered safe, but there is a very low risk of infantile hypertrophic pyloric stenosis in infants exposed during the first 13 days of breastfeeding 4, 6
  • Metronidazole is deemed safe based on cohort studies showing no significant adverse effects in infants 4

Medications to Avoid or Use with Caution

  • Methotrexate should be avoided during breastfeeding as it may accumulate in neonatal tissues despite minimal passage into breast milk 4
  • Cyclophosphamide is strongly recommended against during breastfeeding 4

Practical Recommendations

  • When prescribing medications for a breastfeeding patient with gastritis, select those with the lowest risk to the infant 2
  • Time medication dosing to be taken just after breastfeeding or before the infant's longest sleep interval to minimize exposure 2, 3
  • The amount of medication that enters breast milk is generally small and much less than known safe doses given directly to infants 7
  • Most commonly used drugs for gastritis are relatively safe for breastfed babies 7

Monitoring

  • Monitor the infant for potential side effects, particularly with medications that have limited safety data 3
  • For most gastritis medications, the benefits of continuing breastfeeding outweigh the minimal risks to the infant 3, 1

References

Research

Gastrointestinal medications and breastfeeding.

Journal of human lactation : official journal of International Lactation Consultant Association, 1998

Research

Medication Safety in Breastfeeding.

American family physician, 2022

Research

Medications in pregnancy and lactation.

Emergency medicine clinics of North America, 2003

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Guideline

First-Line Antibiotics for Mastitis in Breastfeeding Women

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Research

Drugs in breastfeeding.

Australian prescriber, 2015

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.