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Dextromethorphan / Doxylamine Dosage

Medically reviewed by Drugs.com. Last updated on Aug 17, 2023.

Applies to the following strengths: 30 mg-12.5 mg/10 mL; 30 mg-12.5 mg/20 mL; 30 mg-12.5 mg/30 mL; 15 mg-6.25 mg/15 mL; 7.5 mg-3.125 mg/5 mL

Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Cough and Nasal Congestion

Dextromethorphan-doxylamine 15 mg-6.25 mg/15 mL oral liquid:
30 mL orally every 6 hours not to exceed 4 doses daily.

Dextromethorphan-doxylamine 7.5 mg-3.125 mg/5 mL oral liquid:
20 mL orally every 6 hours not to exceed 4 doses daily.

Usual Pediatric Dose for Cough and Nasal Congestion

Dextromethorphan-doxylamine 15 mg-6.25 mg/15 mL oral liquid:
12 years or older: 30 mL orally every 6 hours not to exceed 4 doses daily.

Dextromethorphan-doxylamine 7.5 mg-3.125 mg/5 mL oral liquid:
12 years or older: 20 mL orally every 6 hours not to exceed 4 doses daily.

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Dialysis

Data not available

See also:

Further information

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