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Acetaminophen / Dextromethorphan / Doxylamine / Phenylephrine Dosage

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

Applies to the following strengths: 650 mg-20 mg-12.5 mg-10 mg/30 mL; 325 mg-10 mg-6.25 mg-5 mg/15 mL; 325 mg-10 mg-6.25 mg-5 mg; 250 mg-10 mg-6.25 mg-5 mg; 650 mg-20 mg-12.5 mg-10 mg

Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Cold Symptoms

Acetaminophen 325 mg/ dextromethorphan 10 mg/ doxylamine 6.25 mg/ phenylephrine 5 mg per unit (tablet/capsule/liquid-filled capsule): 2 orally every 4 hours
Maximum dose: 4 doses per 24 hours

Acetaminophen 650 mg/ dextromethorphan 20 mg/ doxylamine 12.5 mg/ phenylephrine 10 mg per 30 mL liquid: 30 mL every 4 hours
Maximum dose: 4 doses per 24 hours

Acetaminophen 650 mg/ dextromethorphan 20 mg/ doxylamine 12.5 mg/ phenylephrine 10 mg per packet: 1 packet every 4 hours
Maximum dose: 5 packets per 24 hours

Usual Pediatric Dose for Cold Symptoms

Acetaminophen 325 mg/ dextromethorphan 10 mg/ doxylamine 6.25 mg/ phenylephrine 5 mg per unit (tablet/capsule/liquid-filled capsule):
12 years and older: 2 orally every 4 hours
Maximum dose: 4 doses per 24 hours

Acetaminophen 650 mg/ dextromethorphan 20 mg/ doxylamine 12.5 mg/ phenylephrine 10 mg per 30 mL liquid:
12 years and older: 30 mL every 4 hours
Maximum dose: 4 doses per 24 hours

Acetaminophen 650 mg/ dextromethorphan 20 mg/ doxylamine 12.5 mg/ phenylephrine 10 mg per packet:
12 years and older: 1 packet every 4 hours
Maximum dose: 5 packets per 24 hours

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Use with caution.

Precautions

CONTRAINDICATIONS:


Safety and efficacy have not been established in patients younger than 12 years.

Consult WARNINGS section for additional precautions.

Dialysis

Data not available

Other Comments

Patient advice:

Further information

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