Gantrisin Dosage

Generic name: acetyl sulfisoxazole
Dosage form: Pediatric Suspension
Drug class: Sulfonamides

Medically reviewed by Drugs.com. Last updated on Mar 20, 2025.

Systemic sulfonamides are contraindicated in infants less than 2 months of age, except in the treatment of congenital toxoplasmosis as adjunctive therapy with pyrimethamine.

Usual Dose for Pediatric Patients Over 2 Months of Age

Initial dose: One half of the 24-hour dose. Maintenance dose: 150 mg/kg/24 hours or 4 gm/M2/24 hours — dose to be divided into 4 to 6 doses/24 hours. The maximum dose should not exceed 6 gm/24 hours.