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Chlorpheniramine Dosage

Medically reviewed by Drugs.com. Last updated on Apr 12, 2022.

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 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

Further information

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