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Dexchlorpheniramine / Phenylephrine Dosage

Medically reviewed by Drugs.com. Last updated on Mar 9, 2020.

Applies to the following strengths: 2 mg-10 mg; 3 mg-20 mg; 6 mg-40 mg; 3.5 mg-18.5 mg

Usual Adult Dose for:

Usual Pediatric Dose for:

Additional dosage information:

Usual Adult Dose for Allergic Rhinitis

dexchlorpheniramine-phenylephrine 3.5 mg-18.5 mg oral tablet, extended release:
dexchlorpheniramine-phenylephrine 6 mg-40 mg oral tablet, extended release:
1 tablet orally every 12 hours.

dexchlorpheniramine-phenylephrine 3 mg-20 mg oral tablet, extended release:
1 or 2 tablets orally every 12 hours.

Usual Adult Dose for Allergic Urticaria

dexchlorpheniramine-phenylephrine 3.5 mg-18.5 mg oral tablet, extended release:
dexchlorpheniramine-phenylephrine 6 mg-40 mg oral tablet, extended release:
1 tablet orally every 12 hours.

dexchlorpheniramine-phenylephrine 3 mg-20 mg oral tablet, extended release:
1 or 2 tablets orally every 12 hours.

Usual Pediatric Dose for Allergic Rhinitis

dexchlorpheniramine-phenylephrine 3.5 mg-18.5 mg oral tablet, extended release:
6 to 11 years: one-half tablet orally every 12 hours
12 years or older: 1 tablet orally every 12 hours.

dexchlorpheniramine-phenylephrine 6 mg-40 mg oral tablet, extended release:
12 years or older: 1 tablet orally every 12 hours

dexchlorpheniramine-phenylephrine 3 mg-20 mg oral tablet, extended release:
6 to 11 years: one tablet orally every 12 hours
12 years or older:1 or 2 tablets orally every 12 hours.

Usual Pediatric Dose for Allergic Urticaria

dexchlorpheniramine-phenylephrine 3.5 mg-18.5 mg oral tablet, extended release:
6 to 11 years: one-half tablet orally every 12 hours
12 years or older: 1 tablet orally every 12 hours.

dexchlorpheniramine-phenylephrine 6 mg-40 mg oral tablet, extended release:
12 years or older: 1 tablet orally every 12 hours

dexchlorpheniramine-phenylephrine 3 mg-20 mg oral tablet, extended release:
6 to 11 years: one tablet orally every 12 hours
12 years or older:1 or 2 tablets orally every 12 hours.

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Dialysis

Data not available

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