http://articles.mercola.com/sites/articles/archive/2003/09/24/diabetes-drugs.aspxTwo medications used to treat type 2 diabetes may cause or worsen congestive heart failure and pulmonary edema (fluid in the lungs), according to researchers. The drugs, pioglitazone and rosiglitazone, are taken by over 6 million Americans. ResearchersenCommunityServer 2008.5 SP1 (Build: 31106.3070)