http://articles.mercola.com/sites/articles/archive/2000/07/02/calcium-blockers-part-one.aspxThe use of calcium channel blockers, commonly used for many types of heart disease, were found in this case-control study to be associated with an elevated risk of Gastrointestinal (GI) tract bleeding. Calcium channel blocker use caused a more than doubledenCommunityServer 2008.5 SP1 (Build: 31106.3070)