Open randomised comparison of ofloxacin and norfloxacin in the treatment of complicated urinary tract infections.

The efficacies of ofloxacin and norfloxacin in the treatment of chronic complicated urinary tract infections were compared. 30 adult outpatients suffering from underlying urinary tract disease, with pyuria of 10 or more WBC/hpf and bacteriuria of 10(4) or more viable organisms per millilitre, were randomly assigned to receive ofloxacin 200mg once daily or norfloxacin 400mg twice daily for 10 days. After treatment pyuria was cleared in 9 cases and decreased or unchanged in 6 cases in the ofloxacin group. The corresponding numbers were 10 and 5 in the norfloxacin group. Bacteriuria was eliminated in 12 patients, unchanged in 1 and replaced in 2 in the ofloxacin group. In the norfloxacin group bacteriuria was eliminated in 8 cases, unchanged in 1, decreased in 1 and replaced in 5. The overall effectiveness rate was 14 of 15 in the ofloxacin group and 12 of 15 in the norfloxacin group. Ofloxacin 200mg once daily was as effective as norfloxacin 400mg twice daily in this open study.