question: after prostate operation at the age of 72 urepsis developed given ciptran for 5 days and niftron100mg twice daily for 15 days. however,after some times uti developed causing kidney infection resulting sharp increase in serum creatinine upto 4.8 then after long antibiotic medication of 15 days(IV) infection reduced causing creatinine to reduce to 2.8(stable from last 24days). now, a doctor has prescribed niftas50 daily for 3-6 months. In between, for ecolli treatment, norflox 400 has been given for 14 days twice daily. Moreover, another doctor has recommended to continue norflox400 daily at night for further 20 days. advice