Drug Detail:Chlorpheniramine (Chlorpheniramine [ klor-fen-ir-a-meen ])
Drug Class: Antihistamines
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
- Can you take antihistamines when pregnant?
