Enterobacter spp, Serratia spp, Citrobacter spp

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