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Abstract
Norfloxacin 400 mg twice-a-day has proven to be effective and safe in the treatment of uncomplicated urinary tract infections (UTI). Since previous phar-macokinetic studies demonstrate the feasibility of using norfloxacin 800 mg once-daily, and this scheme is assumed to improve patient compliance, a double-blind randomized clinical trial was performed to compare the efficacy and safety of norfloxacin 800 mg once-daily (Group A) versus norfloxacin 400 mg twice-daily (Group B) in the treatment of adult female UTI for a 7-10 day period.
Eighty-six adult women with clinical symptoms and urinary sediment signs suggestive of UTI were enrolled. In Group A, treatment was clinically assessed as effective in 95.3% and bacteriologically effective in 92.0% of the patients. In Group B, clinical and bacteriological efficacy was 100% and 95.5%, respectively. Differences between groups are not statistically significant. Adverse events were reported by 14.0% of patients in Group A and 9.6% in Group B (difference not statistically significant). There was one withdrawal due to dizziness.
In this study, norfloxacin 800 mg once-a-day was as effective and safe as norfloxacin 400 mg twice-a-day in the treatment of uncomplicated urinary tract infections in women.