Dextromethorphan / Diphenhydramine / Phenylephrine Dosage

This dosage information may not include all the information needed to use Dextromethorphan / Diphenhydramine / Phenylephrine safely and effectively. See additional information for Dextromethorphan / Diphenhydramine / Phenylephrine.

The information at Drugs.com is not a substitute for medical advice. ALWAYS consult your doctor or pharmacist.

Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Allergic Rhinitis

Dextromethorphan/diphenhydrAMINE/PE 15 mg-12.5 mg-15 mg/5 mL oral suspension, extended release: 5 to 10 mL orally every 12 hours.

Dextromethorphan/diphenhydrAMINE/PE 75 mg-25 mg-7.5 mg/5 mL oral suspension, extended release: 5 to 10 mL orally every 12 hours.

Usual Adult Dose for Cold Symptoms

Dextromethorphan/diphenhydrAMINE/PE 15 mg-12.5 mg-15 mg/5 mL oral suspension, extended release: 5 to 10 mL orally every 12 hours.

Dextromethorphan/diphenhydrAMINE/PE 75 mg-25 mg-7.5 mg/5 mL oral suspension, extended release: 5 to 10 mL orally every 12 hours.

Usual Adult Dose for Cough and Nasal Congestion

Dextromethorphan/diphenhydrAMINE/PE 15 mg-12.5 mg-15 mg/5 mL oral suspension, extended release: 5 to 10 mL orally every 12 hours.

Dextromethorphan/diphenhydrAMINE/PE 75 mg-25 mg-7.5 mg/5 mL oral suspension, extended release: 5 to 10 mL orally every 12 hours.

Usual Adult Dose for Sinusitis

Dextromethorphan/diphenhydrAMINE/PE 15 mg-12.5 mg-15 mg/5 mL oral suspension, extended release: 5 to 10 mL orally every 12 hours.

Dextromethorphan/diphenhydrAMINE/PE 75 mg-25 mg-7.5 mg/5 mL oral suspension, extended release: 5 to 10 mL orally every 12 hours.

Usual Pediatric Dose for Allergic Rhinitis

Dextromethorphan/diphenhydrAMINE/PE 15 mg-12.5 mg-15 mg/5 mL oral suspension, extended release:
2 to 5 years: 2.5 mL orally every 12 hours.
6 to 11 years: 5 mL orally every 12 hours.
12 years or older: 5 to 10 mL orally every 12 hours.

Dextromethorphan/diphenhydrAMINE/PE 75 mg-25 mg-7.5 mg/5 mL oral suspension, extended release
2 to 5 years: 1.25 to 2.5 mL orally every 12 hours.
6 to 11 years: 2.5 to 5 mL orally every 12 hours.
12 years or older: 5 to 10 mL orally every 12 hours.

Usual Pediatric Dose for Cold Symptoms

Dextromethorphan/diphenhydrAMINE/PE 15 mg-12.5 mg-15 mg/5 mL oral suspension, extended release:
2 to 5 years: 2.5 mL orally every 12 hours.
6 to 11 years: 5 mL orally every 12 hours.
12 years or older: 5 to 10 mL orally every 12 hours.

Dextromethorphan/diphenhydrAMINE/PE 75 mg-25 mg-7.5 mg/5 mL oral suspension, extended release
2 to 5 years: 1.25 to 2.5 mL orally every 12 hours.
6 to 11 years: 2.5 to 5 mL orally every 12 hours.
12 years or older: 5 to 10 mL orally every 12 hours.

Usual Pediatric Dose for Cough and Nasal Congestion

Dextromethorphan/diphenhydrAMINE/PE 15 mg-12.5 mg-15 mg/5 mL oral suspension, extended release:
2 to 5 years: 2.5 mL orally every 12 hours.
6 to 11 years: 5 mL orally every 12 hours.
12 years or older: 5 to 10 mL orally every 12 hours.

Dextromethorphan/diphenhydrAMINE/PE 75 mg-25 mg-7.5 mg/5 mL oral suspension, extended release
2 to 5 years: 1.25 to 2.5 mL orally every 12 hours.
6 to 11 years: 2.5 to 5 mL orally every 12 hours.
12 years or older: 5 to 10 mL orally every 12 hours.

Usual Pediatric Dose for Sinusitis

Dextromethorphan/diphenhydrAMINE/PE 15 mg-12.5 mg-15 mg/5 mL oral suspension, extended release:
2 to 5 years: 2.5 mL orally every 12 hours.
6 to 11 years: 5 mL orally every 12 hours.
12 years or older: 5 to 10 mL orally every 12 hours.

Dextromethorphan/diphenhydrAMINE/PE 75 mg-25 mg-7.5 mg/5 mL oral suspension, extended release
2 to 5 years: 1.25 to 2.5 mL orally every 12 hours.
6 to 11 years: 2.5 to 5 mL orally every 12 hours.
12 years or older: 5 to 10 mL orally every 12 hours.

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Dialysis

Data not available

Watch this video series to learn about managing severe allergies (anaphylaxis).

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