http://articles.mercola.com/sites/articles/archive/2006/08/15/why-take-an-antidepressant-to-treat-ibs.aspxA small study suggests that selective serotonin reuptake inhibitor (SSRI) antidepressants can help those with irritable bowel syndrome (IBS). Serotonin plays an important role in gastrointestinal tract activity, and SSRIs are often used to treat IBS,enCommunityServer 2008.5 SP1 (Build: 31106.3070)