title: Single-dose amoxicillin therapy of acute uncomplicated urinary tract infections in women.
abstract: Of 210 women who were experiencing dysuria, frequent urination, pyuria, and significant bacteriuria and who were treated with a single 3-g dose of amoxicillin, 165 (79%) were cured of their original infections. Patients with infections that were negative by antibody-coated-bacteria assay were cured at a significantly higher rate than those with infections that were positive by antibody-coated-bacteria assay (90 versus 59%; P less than 0.001). Similarly, those with infections caused by amoxicillin-susceptible organisms were cured at a significantly higher rate than those with infections caused by resistant organisms (85 versus 50%; P less than 0.001). Of 27 patients who had infections caused by amoxicillin-susceptible organisms and who had relapses after single-dose therapy, 14 (52%) had relapses again after a conventional 10-day course of therapy, although all responded to a 6-week course. An additional 27 patients experiencing dysuria, frequent urination, and pyuria but who had a lower number of uropathogens in the urine (10(2) to 10(4.5)/ml of urine) were treated with single-dose therapy, with a 100% eradication of organisms and an 89% rate of symptomatic relief.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000658:Amoxicillin / Q000008:administration & dosage / Q000627:therapeutic use*; D000919:Antibody-Coated Bacteria Test, Urinary; D001437:Bacteriuria / Q000382:microbiology; D004756:Enterobacteriaceae Infections / Q000188:drug therapy; D005260:Female; D006801:Humans; D008826:Microbial Sensitivity Tests; D008875:Middle Aged; D012008:Recurrence; D014552:Urinary Tract Infections / Q000188:drug therapy*
chemical_list: D000658:Amoxicillin