Dosage Forms
Uses
Dose and Duration
By mouth
Adult and child over 12 years: 125–500 mg every 6 hours for 7–10 days.
Child 5–12 years: 62.5 mg every 6 hours and 250 mg every 6 hours in life threatening infections for 7–10 days.
Child 1 month–5 years: 5 mg/kg every 6 hours and 10 mg/kg in life-threatening infections for 7–10 days.
Adult: by slow IV infusion over at least 60 minutes, 1 g.
By slow IV infusion over at least 60 minutes. May be given for up to 4–6 weeks depending on condition.
Adult and child above 12 years: 500 mg every six hours or 1 g every 12 hours.
Elderly > 65 years: 500 mg every 12 hours or 1 g once daily.
Neonate over 35 weeks postmenstrual age and child 1 month–12 years: 15 mg/kg every 8 hours.
Neonate 29–35 weeks postmenstrual age: 15 mg/kg every 12 hours, adjusted basing on plasma concentration.
Neonate less than 29 weeks postmenstrual age: 15 mg/kg every 24 hours, adjusted according to plasma concentration.
