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Karbinal ER Dosage

Generic name: CARBINOXAMINE MALEATE 4mg in 5mL
Dosage form: oral suspension, extended release
Drug class: Antihistamines

Medically reviewed by Last updated on Jan 5, 2023.


The dosage of Karbinal ER should be individualized based on the severity of the condition and the response of the patient. Start with lower doses and increase as needed and tolerated.


Administer Karbinal ER by the oral route only. Measure Karbinal ER with an accurate milliliter measuring device. A household teaspoon is not an accurate measuring device and could lead to overdosage. A pharmacist can provide an appropriate measuring device and can provide instructions for measuring correct dose.

Recommended Dosage for Adults and Adolescents 12 years of age and older:

7.5 mL to 20 mL (6 to 16 mg) every 12 hours administered orally

Recommended Dosage for Pediatric Patients 2 to 11 years of age (approximately 0.2 to 0.4 mg/kg/day):

2 to 3 years: 3.75 mL to 5 mL (3 to 4 mg) every 12 hours administered orally

4 to 5 years: 3.75 mL to 10 mL (3 to 8 mg) every 12 hours administered orally

6 to 11 years: 7.5 mL to 15 mL (6 to 12 mg) every 12 hours administered orally

Further information

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