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Brompheniramine / Dextromethorphan / Phenylephrine Dosage

Medically reviewed by Drugs.com. Last updated on Jun 6, 2019.

Applies to the following strengths: 1 mg-5 mg-2.5 mg/5 mL; 10 mg-30 mg-25 mg/5 mL; 2 mg-10 mg-5 mg/5 mL; 4 mg-15 mg-7.5 mg/5 mL; 4 mg-20 mg-10 mg/5 mL; 2 mg-15 mg-7.5 mg/5 mL; 8 mg-20 mg-20 mg/5 mL

Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Cough and Nasal Congestion

Brompheniramine 1 mg/ dextromethorphan 5 mg/ phenylephrine 2.5 mg per 5 mL liquid: 20 mL every 4 hours
Maximum dose: 6 doses per 24 hours

Brompheniramine 2 mg/ dextromethorphan 10 mg/ phenylephrine 5 mg per 10 mL liquid: 20 mL every 4 hours
Maximum dose: 6 doses per 24 hours

Brompheniramine 4 mg/ dextromethorphan 20 mg/ phenylephrine 10 mg per 5 mL liquid: 5 mL every 4 hours
Maximum dose: 6 doses per 24 hours

Usual Pediatric Dose for Cough and Nasal Congestion

Brompheniramine 1 mg/ dextromethorphan 5 mg/ phenylephrine 2.5 mg per 5 mL liquid:
12 years and older: 20 mL every 4 hours
6 to under 12 years: 10 mL every 4 hours
Maximum dose: 6 doses per 24 hours

Brompheniramine 2 mg/ dextromethorphan 10 mg/ phenylephrine 5 mg per 10 mL liquid:
12 years and older: 20 mL every 4 hours
6 to under 12 years: 10 mL every 4 hours
Maximum dose: 6 doses per 24 hours

Brompheniramine 4 mg/ dextromethorphan 20 mg/ phenylephrine 10 mg per 5 mL liquid:
12 years and older: 5 mL every 4 hours
6 to under 12 years: 2.5 mL every 4 hours
Maximum dose: 6 doses per 24 hours

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Precautions

CONTRAINDICATIONS:
-Current use of a monoamine oxidase inhibitor (MAOI) or use within 14 days of stopping a MAOI.
-Use in children under 2 years old.

Safety and efficacy have not been established in patients younger than 6 years.

Consult WARNINGS section for additional precautions.

Dialysis

Data not available

Other Comments

Administration advice:
-Use only the provided dosing cups for measuring.

Patient advice:
-Take only as directed.
-Avoid drinking alcohol while on this drug.
-Discontinue for nervousness, dizziness, or sleepiness.
-Use caution if driving a motor vehicle or operating machinery.
-If symptoms last over 7 days or are accompanied by fever, seek medical attention.
-If cough lasts over 7 days or comes back, or is accompanied or followed by fever, headache that lasts, or rash, seek medical care promptly.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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