Zafirlukast Dosage
This dosage information may not include all the information needed to use Zafirlukast safely and effectively. See additional information for Zafirlukast.
The information at Drugs.com is not a substitute for medical advice. ALWAYS consult your doctor or pharmacist.
Usual Adult Dose for:
Usual Pediatric Dose for:
Additional dosage information:
Usual Adult Dose for Asthma - Maintenance
20 mg orally twice a day, 1 hour before or 2 hours after meals.
Usual Pediatric Dose for Asthma - Maintenance
5 years to 11 years:
10 mg orally twice a day, 1 hour before or 2 hours after meals.
12 years or older:
20 mg orally twice a day, 1 hour before or 2 hours after meals.
Renal Dose Adjustments
No adjustment necessary
Liver Dose Adjustments
Zafirlukast is contraindicated in patients with hepatic impairment including hepatic cirrhosis.
Dialysis
No data available.


