All Ages:

• Weight <1.2kg: 50 mg/kg/dose IV/IM q12h

0-7 days:

• Weight 1.2-2kg: 50 mg/kg/dose IV/IM q12h
• Weight >2kg: 50 mg/kg/dose IV/IM q8h-q12h

>7 days:

• Weight 1.2-2kg: 50 mg/kg/dose IV/IM q8h
• Weight >2kg: 50 mg/kg/dose IV/IM q6h-q8h