Oral: 12.5 to 25 mg orally 3 to 4 times a day; alternatively, weight-based dosing of 5 mg/kg orally per day OR body surface area dosing of 150 mg/m2 orally per day may be used-Maximum dose: 300 mg/dayParenteral: 1.25 mg/kg deep IM or IV 4 times a day OR 37.5 mg/m2 deep ...