Dextromethorphan Dosage

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

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 Cough

Capsule, Liquid, Tablet, Syrup: 10 to 30 mg orally every 4 to 8 hours.
Lozenge: 3 lozenges (10 mg each) orally every 6 to 8 hours.
Sustained-release: 60 mg orally every 12 hours.
Oral disintegrating strip: 15 to 30 mg orally every 6 to 8 hours.
Maximum dose: 120 mg/day.

Usual Pediatric Dose for Cough

Dosage in children less than 4 years of age is not well established.

1 to 3 months:
0.5 to 1 mg orally every 6 to 8 hours.

4 to 6 months:
1 to 2 mg orally every 6 to 8 hours

7 months to 1 year:
2 to 4 mg orally every 6 to 8 hours

2 to 6 years:
Liquid, Lozenge,Tablet, Syrup: 2.5 to 7.5 mg orally every 4 to 8 hours.
5 mg/5 mL oral liquid: 5 mL orally every 4 hours. Not more than 4 doses in 24 hours.
Sustained-release: 15 mg orally every 12 hours.
Maximum dose: 30 mg/day.

7 to 12 years:
Disintegrating strip: dissolve 2 strips on tongue every 6 to 8 hours.
Liquid, Lozenge, Tablet, Syrup: 5 to 10 mg orally every 4 hours or 15 mg every 6 to 8 hours.
5 mg/5 mL oral liquid: 10 mL orally every 4 hours. Not more than 4 doses in 24 hours.
Sustained-release: 30 mg orally every 12 hours.
Maximum dose: 60 mg/day.

12 years or older:
Capsule, Liquid, Lozenge, Tablet, Syrup: 10 to 30 mg orally every 4 to 8 hours.
Sustained-release: 60 mg orally every 12 hours.
Oral disintegrating strip: 15 to 30 mg orally every 6 to 8 hours.
Maximum dose: 120 mg/day.

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Precautions

Leading manufacturers of over-the-counter (OTC) pediatric cough and cold products, in consultation with the Food and Drug Administration (FDA), announced in 2008 that they are transitioning product labeling as it relates to children less than 4 years of age. The new product labeling will state "Do not use in children under four years of age." The safety of the ingredients in these products was not in question. It was found that dosing errors and accidental ingestions were the leading cause of rare adverse events in children.

Dialysis

Data not available

Hide
(web2)