What is the appropriate dose of Bromfed (brompheniramine/pseudoephedrine) for a 9‑year‑old child?

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Last updated: September 30, 2026 • View editorial policy

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Bromfed Dosing for a 9-Year-Old Child

For a 9-year-old child, the appropriate dose of Bromfed is 5 mL (1 teaspoonful) every 4 hours, not to exceed 6 doses in 24 hours 1.

Dosing Algorithm by Age

The FDA-approved dosing for Bromfed (brompheniramine/pseudoephedrine) follows a clear age-based structure 1:

  • Ages 6 to under 12 years (includes your 9-year-old): 5 mL (1 teaspoonful) every 4 hours
  • Ages 2 to under 6 years: 2.5 mL (½ teaspoonful) every 4 hours
  • Ages 12 years and over: 10 mL (2 teaspoonfuls) every 4 hours
  • Maximum: Do not exceed 6 doses in any 24-hour period

Important Clinical Considerations

Efficacy Profile

The combination provides dual action: brompheniramine (antihistamine) for rhinorrhea and allergic symptoms, and pseudoephedrine (decongestant) for nasal congestion 1. Pseudoephedrine demonstrates efficacy in children aged 6-11 years with onset within 30 minutes and peak effect at approximately 1 hour 2. Brompheniramine shows prompt onset (0.5 hours) with sustained H1-blockade lasting up to 30 hours in children, with peak plasma concentrations at 3.2 hours 3.

Safety Warnings

Central nervous system effects are the primary concern in pediatric patients:

  • Somnolence is more common with brompheniramine (antihistamine component)
  • Stimulation effects (insomnia, nervousness, hyperactivity) can occur from pseudoephedrine, particularly when combined with other stimulants like ADHD medications 4, 2
  • Monitor for paradoxical CNS stimulation in children, which can manifest as agitation or hyperactivity 1

Common Pitfalls to Avoid

  1. Do not use in children under 6 years without physician guidance - the safety profile is less established, and serious adverse events including death have been reported in younger children with decongestants 4

  2. Avoid combining with other stimulants - concurrent use with caffeine or ADHD medications increases risk of tachyarrhythmias and CNS overstimulation 4

  3. Do not exceed recommended dosing frequency - the 4-hour interval and 6-dose maximum are critical safety parameters 1

  4. Consider alternatives for prolonged use - intranasal corticosteroids may be more appropriate for chronic symptoms with better safety profiles 5

Contraindications and Cautions

Use with extreme caution or avoid in children with:

  • Cardiovascular disease
  • Hypertension
  • Hyperthyroidism
  • Closed-angle glaucoma
  • Bladder neck obstruction 4

Overdose Recognition

Be alert for signs of toxicity 1:

  • Brompheniramine overdose: CNS depression or paradoxical stimulation, anticholinergic effects
  • Pseudoephedrine overdose: CNS stimulation, tachycardia, hypertension, cardiac arrhythmias

References

Research

The clinical pharmacology of brompheniramine in children.

The Journal of allergy and clinical immunology, 1999

Guideline

the diagnosis and management of rhinitis: an updated practice parameter.

Journal of Allergy and Clinical Immunology, 2008

Guideline

clinical practice guideline: allergic rhinitis.

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 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.