Table 5.

Some Antimicrobials for Prophylaxis of UTI

AntimicrobialDosage
TMP in combination with SMX2 mg of TMP, 10 mg of SMX per kg as single bedtime dose or 5 mg of TMP, 25 mg of SMX per kg twice per week
Nitrofurantoin1–2 mg/kg as single daily dose
Sulfisoxazole10–20 mg/kg divided every 12 h
Nalidixic acid30 mg/kg divided every 12 h
Methenamine mandelate75 mg/kg divided every 12 h