Dextromethorphan/Guaifenesin/Phenylephrine Dosage
This dosage information may not include all the information needed to use Dextromethorphan/Guaifenesin/Phenylephrine safely and effectively. See additional information for Dextromethorphan/Guaifenesin/Phenylephrine.
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Usual Adult Dose for:
Usual Pediatric Dose for:
Additional dosage information:
Usual Adult Dose for Cough and Nasal Congestion
Dextromethorphan 15 mg/guaifenesin 100 mg/phenylephrine 5 mg/5 mL:
10 mL orally every 6 hours not to exceed 40 mL daily.
Dextromethorphan 15 mg/guaifenesin 300 mg/phenylephrine 10 mg/5 mL:
10 mL orally every 6 hours not to exceed 40 mL daily.
Dextromethorphan 20 mg/guaifenesin 100 mg/phenylephrine 10 mg/5 mL:
5 mL orally every 4 to 6 hours not to exceed 30 mL daily.
Dextromethorphan 20 mg/guaifenesin 800 mg/phenylephrine 20 mg oral tablets, extended release:
1 to 1.5 tablets orally every 12 hours not to exceed 3 tablets daily.
Dextromethorphan 30 mg/guaifenesin 900 mg/phenylephrine 30 mg oral tablets, extended release:
1 tablet orally every 12 hours not to exceed 2 tablets daily.
Dextromethorphan 25 mg/guaifenesin 175 mg/phenylephrine 12.5 mg/5 mL:
5 mL orally four times daily.
Dextromethorphan 25 mg/guaifenesin 550 mg/phenylephrine 20 mg oral tablets, and Dextromethorphan 25 mg/guaifenesin 600 mg/phenylephrine 20 mg oral tablets, extended release:
1 to 2 tablets orally every 12 hours not to exceed 3 tablets daily.
Dextromethorphan 30 mg/guaifenesin 1000 mg/phenylephrine 20 mg oral tablets, extended release:
1 tablet orally every 12 hours not to exceed 2 tablets daily.
Dextromethorphan 30 mg/guaifenesin 1200 mg/phenylephrine 30 mg oral tablets, extended release:
1 tablet orally every 12 hours not to exceed 2 tablets daily.
Dextromethorphan 30 mg/guaifenesin 600 mg/phenylephrine 10 mg oral tablets, extended release:
1 to 2 tablets orally every 12 hours not to exceed 4 tablets daily.
Dextromethorphan 40 mg/guaifenesin 200 mg/phenylephrine 20 mg/10 mL extended release suspension:
10 mL orally every 12 hours not to exceed 2 doses daily.
Dextromethorphan 45 mg/guaifenesin 1200 mg/phenylephrine 25 mg oral tablets, extended release:
1 tablet orally every 12 hours not to exceed 2 doses daily.
Dextromethorphan 60 mg/guaifenesin 600 mg/phenylephrine 40 mg oral tablets, extended release:
1 tablet orally every 12 hours not to exceed 2 doses daily.
Dextromethorphan 60 mg/guaifenesin 1000 mg/phenylephrine 40 mg oral tablets, extended release:
1 tablet orally every 12 hours not to exceed 2 doses daily.
Dextromethorphan 20 mg/guaifenesin 800 mg/phenylephrine 20 mg oral tablets, extended release:
1 to 1.5 tablets orally every 12 hours not to exceed 3 tablets daily.
Dextromethorphan 30 mg/guaifenesin 600 mg/phenylephrine 20 mg oral tablets, extended release:
1 or 2 tablets orally twice a day not to exceed 2 doses daily.
Dextromethorphan/guaifenesin/phenylephrine 14 mg-288 mg-7 mg oral capsule:
1 capsule orally every 4 to 6 hours.
Dextromethorphan 15 mg/guaifenesin 380 mg/phenylephrine 10 mg oral capsule:
1 capsule orally every 4 hours not to exceed 6 tablets daily.
Dextromethorphan 20 mg/guaifenesin 400 mg/phenylephrine 10 mg oral tablet:
1 tablet orally every 4 to 6 hours not to exceed 4 tablets in 24 hours.
Dextromethorphan 20 mg/guaifenesin 200 mg/phenylephrine 10 mg/10 mL oral liquid:
1 prefilled spoon (10 mL) orally every 4 hours.
Dextromethorphan 5 mg/guaifenesin 50 mg/phenylephrine 2.5 mg/5 mL oral liquid:
20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 15 mg-350 mg-12 mg oral tablet:
1 tablet orally every 6 hours, not to exceed 4 tablets in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 10 mg-200 mg-5 mg/5 mL oral liquid:
10 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 20 mg-400 mg-10 mg/5 mL oral liquid:
5 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 5 mg-75 mg-2.5 mg/5 mL oral liquid:
20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 20 mg-400 mg-10 mg/20 mL oral liquid:
20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
Usual Pediatric Dose for Cough and Nasal Congestion
Dextromethorphan 5 mg/guaifenesin 50 mg/phenylephrine 2.5 mg/5 mL oral liquid:
over 6 months to less than 9 months: 0.75 mL orally 4 times daily.
over 9 months to 18 months: 1 mL orally 4 times daily.
Dextromethorphan 15 mg/guaifenesin 100 mg/phenylephrine 5 mg/5 mL:
over 2 yrs to less than 6 yrs: 2.5 mL orally every 6 hours not to exceed 10 mL daily.
over 6 yrs to less than 12 yrs: 5 mL orally every 6 hours not to exceed 20 mL daily.
over 12 yrs: 10 mL orally every 6 hours not to exceed 40 mL daily.
Dextromethorphan 15 mg/guaifenesin 300 mg/phenylephrine 10 mg/5 mL:
over 6 yrs to less than 12 yrs: 5 mL orally every 6 hours not to exceed 20 mL daily.
over 12 yrs: 10 mL orally every 6 hours not to exceed 40 mL daily.
Dextromethorphan 20 mg/guaifenesin 100 mg/phenylephrine 10 mg/5 mL:
over 2 yrs to less than 6 yrs: 1.25 mL orally every 4 to 6 hours not to exceed 7.5 mL daily.
over 6 yrs to less than 12 yrs: 2.5 mL orally every 4 to 6 hours not to exceed 15 mL daily.
over 12 yrs: 5 mL orally every 4 to 6 hours not to exceed 30 mL daily.
Dextromethorphan 25 mg/guaifenesin 175 mg/phenylephrine 12.5 mg/5 mL oral syrup:
over 2 yrs to less than 6 yrs: 1.25 mL orally four times daily.
over 6 yrs to less than 12 yrs: 2.5 mL orally four times daily.
over 12 yrs: 5 mL orally four times daily.
Dextromethorphan 23 mg/guaifenesin 600 mg/phenylephrine 9 mg oral tablets, extended release:
over 6 yrs to less than 12 yrs: one half tablet orally every 12 hours not to exceed 1 tablet daily
over 12 yrs: 1 or 2 tablets orally every 12 hours not to exceed 4 tablets daily.
Dextromethorphan 20 mg/guaifenesin 800 mg/phenylephrine 20 mg oral tablets, extended release:
over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.
over 12 yrs: 1 to 1.5 tablets orally every 12 hours not to exceed 3 tablets daily.
Dextromethorphan 25 mg/guaifenesin 550 mg/phenylephrine 20 mg oral tablets, extended release:
over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.
over 12 yrs: 1 to 2 tablets orally every 12 hours not to exceed 3 tablets daily.
Dextromethorphan 25 mg/guaifenesin 600 mg/phenylephrine 20 mg oral tablets, extended release:
over 2 yrs to less than 6 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.
over 6 yrs to less than 12 yrs: 1/2 to 1 tablet orally every 12 hours not to exceed 1 1/2 tablet daily.
over 12 yrs: 1 to 2 tablets orally every 12 hours not to exceed 3 tablets daily.
Dextromethorphan 30 mg/guaifenesin 1200 mg/phenylephrine 30 mg oral tablets, extended release:
over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.
over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 tablets daily.
Dextromethorphan 30 mg/guaifenesin 600 mg/phenylephrine 10 mg oral tablets, extended release:
over 6 yrs to less than 12 yrs: 1 tablet orally every 12 hours not to exceed 2 tablets daily.
over 12 yrs: 1 to 2 tablets orally every 12 hours not to exceed 4 tablets daily.
Dextromethorphan 30 mg/guaifenesin 1000 mg/phenylephrine 20 mg oral tablets, extended release:
over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.
over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 tablets daily.
Dextromethorphan 40 mg/guaifenesin 200 mg/phenylephrine 20 mg/10 mL:
over 3 yrs to less than 6 yrs: 2.5 mL orally every 12 hours not to exceed 5 mL daily.
over 6 yrs to less than 12 yrs: 5 mL orally every 12 hours not to exceed 10 mL daily.
over 12 yrs: 10 mL orally every 12 hours not to exceed 20 mL daily.
Dextromethorphan 45 mg/guaifenesin 1200 mg/phenylephrine 25 mg oral tablets, extended release:
over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 2 doses daily.
over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 doses daily.
Dextromethorphan 60 mg/guaifenesin 600 mg/phenylephrine 40 mg oral tablets, extended release:
over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 2 doses daily.
over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 doses daily.
Dextromethorphan 60 mg/guaifenesin 1000 mg/phenylephrine 40 mg oral tablets, extended release:
over 6 yrs to less than 12 yrs: 1/2 tablet orally every 12 hours not to exceed 2 doses daily.
over 12 yrs: 1 tablet orally every 12 hours not to exceed 2 doses daily.
Dextromethorphan 5 mg/guaifenesin 100 mg/phenylephrine 2.5 mg/5 mL:
over 2 yrs to less than 6 yrs and 11 kg to 21 kg: 2.5 mL orally every 4 hours not to exceed 15 mL daily.
Dextromethorphan 30 mg/guaifenesin 900 mg/phenylephrine 30 mg oral tablets, extended release:
6 years to 12 years: 1/2 tablet orally every 12 hours not to exceed 1 tablet daily.
12 years or older: 1 tablet orally every 12 hours not to exceed 2 tablets daily.
Dextromethorphan 30 mg/guaifenesin 600 mg/phenylephrine 20 mg oral tablets, extended release:
12 years or older: 1 or 2 tablets orally twice a day not to exceed 2 doses daily.
Dextromethorphan/guaifenesin/phenylephrine 14 mg-288 mg-7 mg oral capsule:
over 12 yrs: 1 capsule orally every 4 to 6 hours.
Dextromethorphan 15 mg/guaifenesin 380 mg/phenylephrine 10 mg oral capsule:
12 years or older: 1 capsule orally every 4 hours not to exceed 6 tablets daily.
Dextromethorphan 20 mg/guaifenesin 400 mg/phenylephrine 10 mg oral tablet:
6 years to 12 years: 1/2 tablet orally every 4 to 6 hours not to exceed 2 tablets in 24 hours.
over 12 yrs 1 tablet orally every 4 to 6 hours not to exceed 4 tablets in 24 hours.
Dextromethorphan 20 mg/guaifenesin 200 mg/phenylephrine 10 mg/10 mL oral liquid:
12 years or older: 1 prefilled spoon (10 mL) orally every 4 hours.
Dextromethorphan 5 mg/guaifenesin 50 mg/phenylephrine 2.5 mg/5 mL oral liquid:
4 years to 5 years: 5 mL orally every 4 hours not to exceed 6 doses in 24 hours.
6 years to 11 years: 10 mL orally every 4 hours not to exceed 6 doses in 24 hours.
12 years or older: 20 mL orally every 4 hours not to exceed 6 doses in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 15 mg-350 mg-12 mg oral tablet:
12 years or older: 1 tablet orally every 6 hours, not to exceed 4 tablets in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 10 mg-200 mg-5 mg/5 mL oral liquid:
12 years or older: 10 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 5 mg-100 mg-2.5 mg/5 mL oral liquid:
4 years to 5 years: 5 mL orally every 4 hours not to exceed 6 doses in 24 hours.
6 years to 11 years: 10 mL orally every 4 hours not to exceed 6 doses in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 20 mg-400 mg-10 mg/5 mL oral liquid:
12 years or older: 5 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 5 mg-75 mg-2.5 mg/5 mL oral liquid:
2 years to 5 years: 5 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
6 years to 11 years: 10 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
12 years or older: 20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
Dextromethorphan/guaifenesin/phenylephrine 20 mg-400 mg-10 mg/20 mL oral liquid:
12 years or older: 20 mL orally every 4 hours. Do not take more than 6 doses in 24 hours.
Renal Dose Adjustments
Data not available
Liver Dose Adjustments
Data not available
Dialysis
Data not available
