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Dextromethorphan / Guaifenesin / Pseudoephedrine Dosage

Medically reviewed by Drugs.com. Last updated on Aug 16, 2023.

Applies to the following strengths: 10 mg-100 mg-30 mg; 10 mg-200 mg-30 mg; 10 mg-100 mg-30 mg/5 mL; 6 mg-40 mg-2 mg/mL; 5 mg-100 mg-15 mg/5 mL; 15 mg-200 mg-30 mg/5 mL; 5 mg-50 mg-15 mg/5 mL; 30 mg-600 mg-60 mg; 20 mg-400 mg-60 mg; 15 mg-100 mg-30 mg/5 mL; 30 mg-600 mg-45 mg; 32 mg-595 mg-48 mg; 15 mg-100 mg-45 mg/5 mL; 15 mg-100 mg-40 mg/5 mL; 30 mg-800 mg-45 mg; 60 mg-800 mg-90 mg; 30 mg-800 mg-60 mg; 15 mg-200 mg-32 mg/5 mL; 60 mg-800 mg-120 mg; 4 mg-20 mg-10 mg/mL; 15 mg-150 mg-30 mg/5 mL; 15 mg-400 mg-60 mg; 30 mg-400 mg-30 mg; 15 mg-175 mg-30 mg/5 mL; 20 mg-380 mg-60 mg; 15 mg-400 mg-45 mg; 15 mg-175 mg-32 mg/5 mL; 10 mg-187 mg-30 mg/5 mL; 2.5 mg-25 mg-7.5 mg/mL; 30 mg-400 mg-60 mg; 20 mg-400 mg-40 mg; 20 mg-400 mg-30 mg; 20 mg-400 mg-20 mg; 30 mg-550 mg-60 mg; 40 mg-780 mg-80 mg; 30 mg-580 mg-60 mg; 30 mg-575 mg-60 mg; 30 mg-575 mg-25 mg; 10 mg-200 mg-15 mg/5 mL; 15 mg-200 mg-40 mg/5 mL; 60 mg-1200 mg-60 mg; 60 mg-1200 mg-120 mg; 30 mg-600 mg-50 mg; 40 mg-700 mg-80 mg; 15 mg-190 mg-30 mg; 30 mg-1000 mg-60 mg

Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Cough and Nasal Congestion

Dose referred to by strength of dextromethorphan/guaiFENesin/pseudoephedrine (in mg) per unit of measurement:

Oral liquids (liquid/drops/solution/syrup):

10/187/30 per 5 mL: 10 mL every 4 hours, maximum 4 doses per day

15/200/30 per 5 mL: 5 to 10 mL every 6 hours, maximum 40 mL per day

Oral solids:

20/380/60 per tablet: 1 tablet every 4 hours, maximum 4 doses per day

30/400/30 per tablet: 1 tablet every 6 hours, maximum 4 doses per day

30/400/60 per tablet: 1 tablet every 6 hours, maximum 4 doses per day

Usual Pediatric Dose for Cough and Nasal Congestion

Dose referred to by strength of dextromethorphan/guaiFENesin/pseudoephedrine (in mg) per unit of measurement:

Oral liquids (liquid/drops/solution/syrup):

5/50/15 per 5 mL
6 to 12 years: 10 mL every 4 to 6 hours, maximum 4 doses per day
2 to under 6 years: 5 mL every 4 to 6 hours, maximum 4 doses per day

10/187/30 per 5 mL
2 to under 6 years: 2.5 mL every 4 hours, maximum 4 doses per day
6 to under 12 years: 5 mL every 4 hours, maximum 4 doses per day
12 years and older: 10 mL every 4 hours, maximum 4 doses per day

15/200/30 per 5 mL
12+= 10 mL every 6 hours, maximum 4 doses per day

15/200/30 per 5 mL
12 years and older: 5 to 10 mL every 6 hours, maximum 40 mL per day
6 to under 12 years: 2.5 to 5 mL every 6 hours, maximum 20 mL per day

Oral solids:

20/380/60 per tablet
12 years and older: 1 tablet every 4 hours, maximum 4 doses per day
6 to under 12 years: 1/2 tablet every 4 hours, maximum 4 doses per day

30/400/30 per tablet
12 years and older: 1 tablet every 6 hours, maximum 4 doses per day

30/400/60 per tablet
12 years and older: 1 tablet every 6 hours, maximum 4 doses per day
6 to under 12 years: 1/2 tablet every 6 hours, maximum 4 doses per day

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Precautions

CONTRAINDICATIONS:


Safety and efficacy have not been established in patients younger than 2 years.

Consult WARNINGS section for additional precautions.

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