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Chlorpheniramine / Dextromethorphan / Phenylephrine Dosage

Medically reviewed on November 20, 2017.

Applies to the following strengths: 2 mg-15 mg-10 mg/5 mL; 2 mg-10 mg-5 mg/5 mL; 4 mg-15 mg-12.5 mg/5 mL; 1 mg-5 mg-2.5 mg/5 mL; 4 mg-15 mg-10 mg/5 mL; 1 mg-3 mg-3.5 mg/mL; 2 mg-15 mg-5 mg/5 mL; 2 mg-15 mg-6 mg/5 mL; 8 mg-30 mg-20 mg; 1 mg-3 mg-1.5 mg/mL; 1 mg-3 mg-2 mg/mL; 0.75 mg-2.75 mg-1.75 mg/mL; 2 mg-10 mg-5 mg; 4 mg-12.5 mg-10 mg/5 mL; 2 mg-30 mg-20 mg; 1 mg-2.5 mg-2.5 mg/mL

Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Cough and Nasal Congestion

Chlorpheniramine/dextromethorphan/phenylephrine 1 mg-5 mg-2.5 mg/5 mL oral liquid
20 mL orally every 4 hours not to exceed 6 doses daily.

Chlorpheniramine/dextromethorphan/phenylephrine 2 mg-10 mg-5 mg/5 mL oral liquid:
10 mL orally every 4 hours not to exceed 6 doses daily.

Chlorpheniramine/dextromethorphan/phenylephrine 2 mg-30 mg-20 mg oral tablet, extended release:
1 to 2 tablets orally every 12 hours not to exceed 4 tablets daily.

Chlorpheniramine/dextromethorphan/phenylephrine 4 mg-15 mg-12.5 mg/5 mL oral syrup:
5 mL orally every 4 to 6 hours not to exceed 30 mL daily.

Chlorpheniramine/dextromethorphan/phenylephrine 8 mg-30 mg-20 mg oral tablet, extended release:
1 to 2 tablets orally every 12 hours not to exceed 3 tablets daily.

Usual Pediatric Dose for Cough and Nasal Congestion

Chlorpheniramine/dextromethorphan/phenylephrine 0.75 mg-2.75 mg-1.75 mg/mL oral drops:
2 to 5 years: 1 mL orally every 4 to 6 hours not to exceed 4 doses daily.
6 to 12 years: 2 mL orally every 4 to 6 hours not to exceed 4 doses daily.

Chlorpheniramine/dextromethorphan/phenylephrine 1 mg-3 mg-1.5 mg/mL oral liquid:
2 to 5 years: 1 mL orally every 4 to 6 hours not to exceed 4 doses daily.
6 to 12 years: 2 mL orally every 4 to 6 hours not to exceed 4 doses daily.

Chlorpheniramine/dextromethorphan/phenylephrine 1 mg-3 mg-2 mg/mL oral drops:
2 to 5 years: 1 mL orally every 4 to 6 hours.
6 to 11 yrs: 2 mL orally every 4 to 6 hours.

Chlorpheniramine/dextromethorphan/phenylephrine 1 mg-3 mg-3.5 mg/mL oral liquid:
6 to 11 months: 0.75 mL orally 4 times daily.
1 to 2 years: 1 mL orally 4 times daily.

Chlorpheniramine/dextromethorphan/phenylephrine 1 mg-5 mg-2.5 mg/5 mL oral liquid
6 to 11 years: 10 mL orally every 4 hours not to exceed 6 doses daily.
12 years or older: 20 mL orally every 4 hours not to exceed 6 doses daily.

Chlorpheniramine/dextromethorphan/phenylephrine 2 mg-10 mg-5 mg/5 mL oral liquid:
6 to 11 years: 5 mL orally every 4 hours not to exceed 6 doses daily.
12 years or older: 10 mL orally every 4 hours not to exceed 6 doses daily.

Chlorpheniramine/dextromethorphan/phenylephrine 2 mg-30 mg-20 mg oral tablet, extended release:
6 to 11 years: 1 tablet orally every 12 hours not to exceed 2 tablets daily.
12 years or older: 1 to 2 tablets orally every 12 hours not to exceed 4 tablets daily.

Chlorpheniramine/dextromethorphan/phenylephrine 4 mg-15 mg-12.5 mg/5 mL oral syrup:
2 to 5 years: 1.25 mL orally every 4 to 6 hours not to exceed 7.5 mL daily.
6 to 11 yrs: 2.5 mL orally every 4 to 6 hours not to exceed 15 mL daily.
12 years or older: 5 mL orally every 4 to 6 hours not to exceed 30 mL daily.

Chlorpheniramine/dextromethorphan/phenylephrine 8 mg-30 mg-20 mg oral tablet, extended release:
12 years or older: 1 to 2 tablets orally every 12 hours not to exceed 3 tablets daily.

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Dialysis

Data not available

Further information

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

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