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Paracetamol and Ibuprofen dosing

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Use in all when enteral route available

<38 weeks 10mg/kg Q8H Max daily <30mg/kg  
Term - 3 months 10mg/kg Q6H Max daily <40mg/kg  
>3 months 20mg/kg Q6H Max daily <90mg/kg Max 4gm/day


Use in children < 25kg when oral route not available

Dosing as per oral doses - round to whole suppositories (25, 50, 125, 250, 500mg)


Use in those > 25kg where oral route not available
Use in those < 25kg when oral and rectal routes unavailable

< 10kg 7.5mg/kg Q6H Max daily 45mg/kg
>10kg 15mg/kg Q6H Max daily 60mg/kg

Loading Doses - These are only for children who have NOT been receiving Paracetamol

PR  40mg/kg Use in children <25kg
PO  20mg/kg Use in children >25kg
IV  15mg/kg Use in children where the PR and PO route is unavailable


Caution if using in <1 month of age
DO NOT use in patients with renal impairment


Load 10mg/kg all ages > 1 month
<3 months 5mg/kg Q8H
>3months 5-10mg/kg Q6-8H

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Document Control

  • Date last published: 05 March 2018
  • Document type: Clinical Guideline
  • Services responsible: Paediatric Intensive Care Unit
  • Owner: Dave Buckley
  • Editor: John Beca
  • Review frequency: 2 years