Chlorpheniramine Dosage
Medically reviewed by Drugs.com. Last updated on Jul 26, 2023.
Applies to the following strengths: 2 mg; 1 mg/5 mL; 16 mg; 4 mg; 12 mg; 10 mg/mL; 8 mg; 2 mg/5 mL; tannate 8 mg; 2 mg/mL; 4 mg/5 mL; 8 mg/5 mL
Usual Adult Dose for:
Usual Pediatric Dose for:
Additional dosage information:
Usual Adult Dose for Allergic Rhinitis
4 mg oral tablets: 1 tablet orally every 4 to 6 hours
Maximum dose: 6 tablets per 24 hours
12 mg extended release tablets: 1 tablet every 12 hours
Maximum dose: 2 tablets per 24 hours
2 mg/ 5 mL syrup: 10 mL orally every 4 to 6 hours
Maximum dose: 6 doses per 24 hours
Uses: Temporary relief of allergic and cold symptoms (runny nose, itchy nose/throat, sneezing, itchy/watery eyes).
Usual Adult Dose for Cold Symptoms
4 mg oral tablets: 1 tablet orally every 4 to 6 hours
Maximum dose: 6 tablets per 24 hours
12 mg extended release tablets: 1 tablet every 12 hours
Maximum dose: 2 tablets per 24 hours
2 mg/ 5 mL syrup: 10 mL orally every 4 to 6 hours
Maximum dose: 6 doses per 24 hours
Uses: Temporary relief of allergic and cold symptoms (runny nose, itchy nose/throat, sneezing, itchy/watery eyes).
Usual Adult Dose for Urticaria
4 mg oral tablets: 1 tablet orally every 4 to 6 hours
Maximum dose: 6 tablets per 24 hours
12 mg extended release tablets: 1 tablet every 12 hours
Maximum dose: 2 tablets per 24 hours
2 mg/ 5 mL syrup: 10 mL orally every 4 to 6 hours
Maximum dose: 6 doses per 24 hours
Uses: Temporary relief of allergic and cold symptoms (runny nose, itchy nose/throat, sneezing, itchy/watery eyes).
Usual Pediatric Dose for Allergic Rhinitis
4 mg oral tablets:
12 years and older: 1 tablet orally every 4 to 6 hours
6 to under 12 years: one-half tablet orally every 4 to 6 hours
Maximum dose: 6 doses per 24 hours
12 mg extended release tablets:
12 years and older: 1 tablet every 12 hours
Maximum dose: 2 tablets per 24 hours
2 mg/ 5 mL syrup:
12 years and older: 10 mL orally every 4 to 6 hours
6 to under 12 years: 5 mL orally every 4 to 6 hours
Maximum dose: 6 doses per 24 hours
Uses: Temporary relief of allergic and cold symptoms (runny nose, itchy nose/throat, sneezing, itchy/watery eyes).
Usual Pediatric Dose for Cold Symptoms
4 mg oral tablets:
12 years and older: 1 tablet orally every 4 to 6 hours
6 to under 12 years: one-half tablet orally every 4 to 6 hours
Maximum dose: 6 doses per 24 hours
12 mg extended release tablets:
12 years and older: 1 tablet every 12 hours
Maximum dose: 2 tablets per 24 hours
2 mg/ 5 mL syrup:
12 years and older: 10 mL orally every 4 to 6 hours
6 to under 12 years: 5 mL orally every 4 to 6 hours
Maximum dose: 6 doses per 24 hours
Uses: Temporary relief of allergic and cold symptoms (runny nose, itchy nose/throat, sneezing, itchy/watery eyes).
Usual Pediatric Dose for Urticaria
4 mg oral tablets:
12 years and older: 1 tablet orally every 4 to 6 hours
6 to under 12 years: one-half tablet orally every 4 to 6 hours
Maximum dose: 6 doses per 24 hours
12 mg extended release tablets:
12 years and older: 1 tablet every 12 hours
Maximum dose: 2 tablets per 24 hours
2 mg/ 5 mL syrup:
12 years and older: 10 mL orally every 4 to 6 hours
6 to under 12 years: 5 mL orally every 4 to 6 hours
Maximum dose: 6 doses per 24 hours
Uses: Temporary relief of allergic and cold symptoms (runny nose, itchy nose/throat, sneezing, itchy/watery eyes).
Renal Dose Adjustments
Data not available
Liver Dose Adjustments
Data not available
Precautions
CONTRAINDICATIONS: None provided
Safety and efficacy have not been established in patients younger than 6 years; this drug is not recommended for use in these patients.
Consult WARNINGS section for additional precautions.
Dialysis
Data not available
Other Comments
The 100 mg/mL injection is for IM or subcutaneous use only.
The 10 mg/mL injection is for IV, IM, or subcutaneous use.
Frequently asked questions
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Further information
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