Is Peptobismol (bismuth subsalicylate) safe for a 1-year-old child?

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Last updated: December 29, 2025View editorial policy

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Pepto-Bismol is Contraindicated in a 1-Year-Old Child

Pepto-Bismol (bismuth subsalicylate) should NOT be given to a 1-year-old child under any circumstances due to the risk of Reye's syndrome and documented cases of salicylate toxicity in infants. 1, 2, 3

Why This is Dangerous

Reye's Syndrome Risk

  • The CDC and ACIP explicitly state that aspirin or aspirin-containing products, including bismuth subsalicylate, should not be administered to any person aged ≤18 years with suspected influenza due to the risk of Reye's syndrome—a rare but potentially fatal illness. 1, 2
  • The FDA drug label for bismuth subsalicylate specifically warns that "children and teenagers who have or are recovering from chicken pox or flu-like symptoms should not use this product." 3
  • The American Academy of Dermatology confirms that salicylates in children with varicella infection or influenza-like illnesses are associated with increased risk of developing Reye syndrome. 1, 2

Documented Salicylate Toxicity in Infants

  • A published case report documented severe salicylate toxicity in a 3-month-old infant who received bismuth subsalicylate (Percy Medicine) for colic, resulting in metabolic acidosis, CNS depression, respiratory distress, and a serum salicylate concentration of 747 mg/L requiring PICU admission. 4
  • The infant in this case received the equivalent of aspirin 57-84 mg/kg/day for 3.5 weeks before presenting with life-threatening toxicity. 4
  • This demonstrates that even "routine" dosing of bismuth subsalicylate can cause serious harm in young children. 4

Additional Contraindications for Diarrhea

  • Antimotility drugs, including bismuth subsalicylate, should not be given to children <18 years of age with acute diarrhea. 2
  • Oral rehydration therapy is the primary treatment for diarrhea in children, not bismuth products. 2

Safe Alternatives for a 1-Year-Old

For Fever or Pain

  • Acetaminophen or ibuprofen (NSAIDs) are the recommended safe alternatives for fever relief in children. 1, 2

For Diarrhea

  • Oral rehydration therapy is the primary treatment. 2
  • Ondansetron may be considered for children >4 years of age with significant vomiting to facilitate oral rehydration (note: your 1-year-old is too young for this). 2

Critical Clinical Pitfall

Parents may assume over-the-counter products are safe because they don't require a prescription, and packaging with pictures of babies can mislead caregivers into thinking products are appropriate for infants. 4 Healthcare providers must explicitly educate families that bismuth subsalicylate is dangerous for all children, especially those under 2 years of age.

References

Guideline

Contraindication of Pepto Bismol in Children

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Guideline

Medication Safety in Children

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

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.

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