Paracetamol is given by intravenous infusion over 15 minutes; dosage may be calculated by weight as follows: Patients weighing over 50 kg: single doses of 1 gram every 4 or more hours to a maximum of 4 grams daily.
From 33 kg to 50 kg: single doses of 15 mg/kg every 4 or more hours, to a maximum of 60 mg/kg or 3 grams daily, whichever is less.