Dexchlorpheniramine / Phenylephrine Dosage
Medically reviewed by Drugs.com. Last updated on Feb 27, 2025.
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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