Answer
May 06, 2026 - 11:04 AM
Histazine (chlorpheniramine) is usually taken every 4 to 6 hours as needed for allergy symptoms, but you should not exceed the dosage recommended on the package or by your doctor. For adults, the typical dose is 4 mg every 4-6 hours, not exceeding 24 mg in 24 hours. Always follow your healthcare provider’s instructions or the directions on the label.
