Bromfed DM Pediatric Dosing
Based on FDA labeling, Bromfed DM should be dosed as follows: children 6 to under 12 years receive 5 mL (1 teaspoonful) every 4 hours; children 2 to under 6 years receive 2.5 mL (½ teaspoonful) every 4 hours; and for infants 6 months to under 2 years, dosage must be established by a physician. 1
Age-Based Dosing Algorithm
The FDA-approved dosing for Bromfed DM (containing brompheniramine 2 mg, pseudoephedrine 30 mg, and dextromethorphan 10 mg per 5 mL) is:
- Ages 12+ years: 10 mL every 4 hours
- Ages 6 to <12 years: 5 mL every 4 hours
- Ages 2 to <6 years: 2.5 mL every 4 hours
- Ages 6 months to <2 years: Physician-determined dosing only
- Maximum: Do not exceed 6 doses in 24 hours 1
Critical Safety Considerations
However, you should strongly reconsider prescribing this medication at all in children. Current CHEST guidelines (2020) explicitly recommend against using over-the-counter cough and cold medicines in children, stating these medications "have little, if any, benefit in the symptomatic control of acute cough in children" and are "associated with adverse events" including reported deaths from toxicity in young children 2. The FDA has warned against using OTC cough/cold medications in children under 4 years of age 2.
Specific Risks in Pediatric Patients
Antihistamine component (brompheniramine): Can cause paradoxical CNS stimulation or depression in children, with anticholinergic effects 1. A subset of asthmatic children may experience bronchospasm and decreased pulmonary function 3
Dextromethorphan toxicity: Seizures have been reported in children at doses of 13-17 mg/kg, though some children tolerate higher doses with only ataxia and drowsiness 1. The therapeutic benefit remains unproven in pediatric populations 2
Serotonin syndrome risk: Recent case reports document serotonin syndrome when dextromethorphan-containing products are combined with SSRIs, even at therapeutic doses 4
Evidence-Based Alternatives
The only intervention with demonstrated benefit for acute cough in children is honey (for children >1 year), which provides more relief than no treatment, diphenhydramine, or placebo 2. Treatment should focus on identifying and addressing the underlying etiology rather than symptomatic suppression 2.
Common Pitfalls to Avoid
- Do not use weight-based dosing for this product—FDA labeling is age-based only 1
- Avoid in children <2 years without direct physician supervision
- Screen for concurrent serotonergic medications (SSRIs, MAOIs) before prescribing 4
- Do not combine with other cough/cold products to prevent overdosing on shared ingredients
- Discontinue if no improvement within expected timeframe rather than continuing indefinitely 2