Doctor's Guide -- SAN ANTONIO, Tex -- October 21, 2010 -- Pooled results of 2 clinical trials show that treatment with rifaximin 550 mg 3 times a day over a 2-week regimen relieves symptoms of nonconstipation irritable bowel syndrome (IBS) better than when compared with placebo, researchers reported here at the 75th Annual Scientific Meeting of the American College of Gastroenterology (ACG).
