Adult 0.5-1 g every 4-6 hr. Max: 4 g daily.
Childn 6-12 yr 250-500 mg,
1-5 yr 120-250 mg,
3 mth-1 yr 60-120 mg,
<3 mth 10 mg/kg (reduce to 5 mg/kg if jaundiced). May be given every 4-6 hr. Max: 4 doses in 24 hr.
Post-immunisation pyrexia Childn 2-3 mth 60 mg, then a 2nd dose may be given after 4-6 hr.