Efficacy and safety of ciprofloxacin (Bay 0 9867) in the treatment of patients with complicated urinary tract infections.

In an open study 28 patients were treated for complicated UTI with ciprofloxacin 250 mg every 12 h for 10 days. The most frequently isolated species were Escherichia coli and Klebsiella pneumoniae. All pathogens were sensitive to ciprofloxacin in vitro. Twenty-three of the 28 patients (82%) were free of infection 5-9 days after therapy. A persistent infection was noted in two patients (7%) and a reinfection in three patients (11%). Four to six weeks after the end of therapy, 18 patients (64%) were still totally free of infection. Clinical resolution of symptoms and signs occurred in 27 patients (96%). Adverse reactions were spontaneously reported by four of the 28 patients (14%) and by 11 (39%) after detailed inquiry. Most side effects were of gastrointestinal or neurological nature. This small open study supports the view, that ciprofloxacin may be useful in the treatment of complicated UTI.