Colistin vial

Adult: As colistin sulfate: 1.5-3 MIU tid.
Child: As colistin sulfate: <15 kg: Not suitable; 15-30 kg: 0.75-1.5 MIU tid.

Adult: As colistimethate Na (strength expressed in terms of colistin base): 2.5-5 mg/kg/day in 2-4 divided doses. Max: 5 mg/kg/day.
Child: As colistimethate Na (strength expressed in terms of colistin base): 2.5 mg/kg/day divided 6-12 hrly.