RecruitingEarly Phase 1Drug trialA Novel Probiotic-antibiotic Combination to Prevent Recurrent Urinary Tract InfectionsPatients with recurrent UTI were randomized to receive either the probiotic Sacchromyces Boulardii at enrollment, and the intracellularly active Ciprofloxacin with their first UTI episode after enrollment, or they received standard of care treatment.