Adult Initially 300 mg on 1st day, 300 mg bid on 2nd day & 300 mg tid on 3rd day. Thereafter, dose may be increased in increments of 300 mg daily. Higher doses up to max of 2.4 g daily may be required in some patients. Take total daily dose in 3 equally divided doses & max dose intervals should not exceed 12 hr.
Childn 6-12 yr Initially 10 mg/kg on 1st day, 20 mg/kg on 2nd day & 25-35 mg/kg on 3rd day. Maintenance dose: 1,200 mg daily in childn 37-50 kg & 900 mg daily in childn 26-36 kg.