Work out paracetamol dose instantly with clear inputs, formula shown and shareable results.
Calculates a weight-based paracetamol dose and checks the daily total against the lower of 75 mg/kg/day and the 4 g adult ceiling.
Paracetamol dosing
Dose = weight x 15 mg/kg every 4-6 hours; daily ceiling = min(75 mg/kg/day, 4000 mg/day)
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
Above 4 g a day the risk of hepatotoxicity rises sharply, and lower caps apply in low body weight, liver disease or malnutrition.
Intravenous and rectal dosing differ from oral dosing; follow the product literature for each route.