Dextromethorphan / Phenylephrine Dosage

Medically reviewed on January 5, 2018.

Usual Adult Dose for Cough and Nasal Congestion

Dextromethorphan-phenylephrine 30 mg-5 mg/10 mL oral liquid:
10 mL orally every 6 hours not to exceed 4 doses daily.

Usual Pediatric Dose for Cough and Nasal Congestion

Dextromethorphan-phenylephrine 30 mg-5 mg/10 mL oral liquid:
6 to 11 years: 5 mL orally every 6 hours not to exceed 4 doses daily.
12 years or older: 10 mL orally every 6 hours not to exceed 4 doses daily.

Dextromethorphan-phenylephrine 5 mg-2.5 mg/5 mL oral liquid:
4 to 5 years: 5 mL orally every 4 hours not to exceed 6 doses daily.
6 to 11 years: 10 mL orally every 4 hours not to exceed 6 doses daily.

Dextromethorphan-phenylephrine 5 mg-2.5 mg oral disintegrating strip
4 to 5 years: 1 strip orally every 4 hours not to exceed 6 doses daily.
6 to 11 years: 2 strips orally every 4 hours not to exceed 6 doses 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.

Medical Disclaimer