Lower UTI:
Trimethoprim
or Nitrofurantoin
or Cefalexin
If sensitive and no other suitable option: Cefuroxime axetil
Child
3 to 5 months: 4 mg/kg (maximum 200mg per dose) or 25mg BD
6 months to 5 years, 4mg/kg (maximum 200mg per dose) or 50mg BD
6 to 11 years, 4mg/kg (maximum 200mg per dose) or 100mg BD
12 to 15 years, 200mg BD
Child
3 months to 11 years: 750 micrograms/kg QDS
12 to 15 years: 50mg QDS or 100mg MR BD
Child
3 to 11 months: 12.5mg/kg or 125mg BD
1 to 4 years: 12.5mg/kg BD or 125mg TDS
5 to 11 years: 12.5mg/kg BD or 250mg TDS
12 to 15 years: 500mg BD or TDS
Child
Weight <40kg: 15mg/kg BD (max. per dose 250mg).
Weight ≥40kg: 250mg BD
3 days
Upper UTI: Consider referral to Paediatrics
Co-amoxiclav
Alternative: Cefalexin
If sensitive and no other suitable option: Cefuroxime axetil
Child
1 to 11 months: 0.25ml/kg of 125/31 suspension TDS
1 to 5 years: 5ml of 125/31 suspension TDS or 0.25ml/kg of 125/31 suspension TDS
6 to 11 years: 5ml of 250/62 suspension TDS or 0.15ml/kg of 250/62 suspension TDS
12 to 17 years: 250/125mg TDS or 500/125mg TDS
1 month to 11 years: 25mg/kg BD to QDS (maximum 1 g per dose QDS)
12 to 15 years: 1.5 g TDS or QDS
Child
Weight <40kg: 15mg/kg BD (max. per dose 250mg).
Weight ≥40kg: 250mg BD
7-10 days
Child <3 months: refer urgently for assessment.
Child ≥ 3 months: use positive nitrite to guide.
Start antibiotics: also send pre-treatment MSU.
Imaging: only refer if child <6 months, or recurrent or atypical UTI.
Upper UTI - refer to paediatrics to: obtain urine sample, assess for signs of systemic infection; consider systemic antimicrobials