E. coli

not ESBL- or Amp C-producing

Therapy Dose Duration
Ceftriaxone 1-2g IV daily 7 days
or    
TMP/SMX (if susceptible) 1DS tab PO bid/10mg TMP/kg/d IV div q12h 7 days
or    
Ciprofloxacin (if susceptible) 500mg PO bid/400mg IV q12h 7 days

ESBL- or Amp C-producing

Therapy Dose Duration
Ertapenem 1g IV daily 7-10 days
or    
Meropenem 500mg IV q6h 7-10 days
or    
TMP/SMX (if susceptible) 1DS tab PO bid/10mg TMP/kg/d IV div q12h 7-10 days
or    

Ciprofloxacin (if susceptible)

500mg PO bid/400mg IV q12h 7-10 days