Adult & childn >12 yr 500 mg tds.
UTI 1 g bd.
Severe or deep-seated infections 1 g tds or 1.5 g qds.
Childn 25-60 mg/kg daily.
Chronic, severe or deep-seated infections 100 mg/kg daily. Max: 4 g daily.
7-12 yr 250-500 mg qds or 0.5-1 g bd,
3-6 yr 125-250 mg qds or 250-500 mg bd,
1-2 yr 62.5-125 mg qds or 125-250 mg bd,
0-1 yr 25-60 mg/kg daily.