Mild to moderately severe infections Adult 600 mg IM daily.
Childn >1 mth 10 mg/kg IM daily.
Severe infections Adult 600 mg IM 12 hrly or more often.
IV infusion 600 mg to 1 g 8-12 hrly.
Childn 10 mg/kg 12 hrly or more often.
IV infusion 10-20 mg/kg daily in 2-3 doses.
More severe infections Increase dose.