Overview Rifaximin 3 Times/Day (TID) for Non-Constipation Irritable Bowel Syndrome (IBS) Status: Completed Trial end date: 2009-09-01 Target enrollment: Participant gender: Summary To evaluate the efficacy of a 14-day course of rifaximin given 3 times a day vs. placebo in providing adequate relief of IBS symptoms. Phase: Phase 3 Details Lead Sponsor: Bausch Health Americas, Inc.Valeant Pharmaceuticals International, Inc.Treatments: RifamycinsRifaximin