Is Zarbees (dextromethorphan) cough syrup safe for a 3-year-old child?

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Last updated: December 4, 2025View editorial policy

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Zarbee's Cough Syrup Safety in 3-Year-Olds

Do not use Zarbee's cough syrup containing dextromethorphan in a 3-year-old child, as over-the-counter cough medications have little to no proven benefit in children and are associated with potential adverse events including reported deaths in young children. 1, 2

Why OTC Cough Medications Should Be Avoided

The American Academy of Pediatrics and major pediatric guidelines explicitly advise against using dextromethorphan and other OTC cough medications in children under 4 years of age. 2, 3 The evidence is clear:

  • Systematic reviews conclude that OTC cough medications (including dextromethorphan) have little, if any, benefit in symptomatic control of acute cough in children 1, 4, 5
  • Dextromethorphan is no different than placebo in reducing nocturnal cough or sleep disturbance in pediatric patients 2
  • Between 1969 and 2006, there were 54 deaths associated with decongestants and 69 deaths associated with antihistamines in children under 6 years 3
  • OTC medications must be balanced against adverse events, which include reported deaths from toxicity in young children 1

What You Should Use Instead: Honey

For a 3-year-old with cough, honey is the recommended first-line treatment. 2, 6

  • Honey provides more relief for cough symptoms than no treatment, diphenhydramine, or placebo 1, 6
  • The American College of Chest Physicians recommends honey as first-line therapy for children over 1 year of age with acute cough 6
  • Honey is safer than codeine-containing medications and more effective than antihistamines 6

Important Clarification About Zarbee's Products

Note that some Zarbee's products contain only honey and natural ingredients (no dextromethorphan), while others contain dextromethorphan. Check the label carefully:

  • Zarbee's Naturals (honey-based): Safe and appropriate for a 3-year-old 2, 6
  • Zarbee's with dextromethorphan: Should NOT be used in a 3-year-old 1, 2, 3

When to Seek Medical Evaluation

Re-evaluate the child if: 2, 6

  • Cough persists beyond 2-4 weeks (may indicate specific underlying condition requiring different management)
  • Deteriorating or not improving after 48 hours
  • Difficulty breathing or increased work of breathing develops
  • Fever persists or appears later in the illness
  • Changes in mental status or refusal to eat/drink occur

Common Pitfalls to Avoid

  • Prescribing OTC medications due to parental pressure despite lack of efficacy - Parents who receive medications (even placebo) report more improvement regardless of actual treatment, so education about natural course is critical 2
  • Medication errors from incorrect dosing - These are common in young children and can lead to unintentional overdose 3
  • Using multiple cold/cough products containing the same ingredients - This is a common cause of adverse events 3
  • Assuming all Zarbee's products are the same - Only honey-based formulations without dextromethorphan are appropriate for this age group

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Guideline

Cough Management in Children

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Guideline

Safe Age for Over-the-Counter Cold Medications in Children

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Guideline

Honey for Chesty Cough 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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