 The proposed study is a multicentre, non-inferiority, double blind, randomized placebo-controlled trial of treatment duration for male urinary tract infection UTI due to fluoroquinolones susceptible bacteria. Specifically, 284 men with a UTI will be randomized to 7 vs. 14 days of antimicrobial treatment. The primary outcome is resolution of fever, sterile urine analysis 4 weeks after completion of antimicrobial therapy and no antibiotic therapy active against the bacterial strain responsible for the UTI within the 4 week period following antimicrobial therapy. Secondary outcomes include the intestinal carriage of antimicrobial-resistant Gram-negative bacilli at the end of treatment, the incidence and severity of adverse drug events and the recurrent UTI within the treatment period and 4 weeks and 12 weeks of completing active study medication. 