Brompheniramine / Dextromethorphan Dosage

Medically reviewed by Drugs.com. Last updated on May 6, 2025.

Usual Adult Dose for Cold Symptoms

Maintenance dose: 20 mL orally every 4 hours
Maximum dose: 6 doses in 24 hours

Comments:

• Use only the dosage cup provided to measure.
• Store the dosage cup with this product.

Uses: Temporary relief of cough, runny nose, sneezing, itchy nose or throat, itchy watery eyes due to hay fever, upper respiratory allergies, coughing intensity

Usual Adult Dose for Cough

Maintenance dose: 20 mL orally every 4 hours
Maximum dose: 6 doses in 24 hours

Comments:

• Use only the dosage cup provided to measure.
• Store the dosage cup with this product.

Uses: Temporary relief of cough, runny nose, sneezing, itchy nose or throat, itchy watery eyes due to hay fever, upper respiratory allergies, coughing intensity

Usual Pediatric Dose for Cold Symptoms

6 to 12 years:
Maintenance dose: 10 mL orally every 4 hours
Maximum dose: 6 doses in 24 hours

12 years and older:
Maintenance dose: 20 mL orally every 4 hours
Maximum dose: 6 doses in 24 hours

Comments:

• Use only the dosage cup provided to measure.
• Store the dosage cup with this product.

Uses: Temporary relief of cough, runny nose, sneezing, itchy nose or throat, itchy watery eyes due to hay fever, upper respiratory allergies, coughing intensity

Usual Pediatric Dose for Cough

6 to 12 years:
Maintenance dose: 10 mL orally every 4 hours
Maximum dose: 6 doses in 24 hours

12 years and older:
Maintenance dose: 20 mL orally every 4 hours
Maximum dose: 6 doses in 24 hours

Comments:

• Use only the dosage cup provided to measure.
• Store the dosage cup with this product.

Uses: Temporary relief of cough, runny nose, sneezing, itchy nose or throat, itchy watery eyes due to hay fever, upper respiratory allergies, coughing intensity

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Precautions

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

Dialysis

Data not available

Other Comments

Storage requirements:

• Store at 20C to 25C (68F to 77F)

Patient advice:

• Take only as directed.
• Ask a doctor or pharmacist before taking if you take sedatives or tranquilizers.
• May cause drowsiness

• Do not use:
• If you take a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug. Ask a doctor or pharmacist before taking this product if you do not know if your prescription drug contains an MAOI.
• To put a child to sleep

• Ask a doctor before taking if you have:
• Difficulty urinating due to an enlarged prostate gland
• Glaucoma
• A cough with too much phlegm (mucus)
• Trouble breathing due to emphysema or chronic bronchitis
• A cough that lasts or is chronic due to smoking, asthma, or emphysema

• When using this product:
• Avoid drinking alcohol
• Alcohol, sedatives, and tranquilizers may increase drowsiness
• Exercise caution when driving a motor vehicle or operating machinery
• Excitability can occur in anyone, but more likely in children

See also:

Further information

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

Medical Disclaimer