[Single-dose treatment of acute cystitis with norfloxacin. 1st report].

25 women with acute uncomplicated cystitis were treated with a single dose of 800 mg norfloxacin orally. Urinary checkups were performed 3 and 8 days after therapy and 4 and 8 weeks later. Urinary cultures, bacterial identification and antibiotic testing were performed. Success rate as based on the bacterial results was 96%. Reinfection occurred in one case only over the follow-up period of 8 weeks. This high success rate is due to strict selection of patients with truly uncomplicated cystitis and the beneficial chemotherapeutic effect of norfloxacin.