More than half a million bottles of blood pressure medication have been recalled over high levels of a chemical compound that could cause cancer, the Food and Drug Administration said.Parsippany, NJ-based Teva Pharmaceuticals USA recalled 580,844 bottles of Prazosin Hydrochloride earlier this month.The medication is an alpha blocker taken to lower high blood pressure.More than half a million bottles of blood pressure medication have been recalled. Teva PharmaceuticalsTesting revealed high levels of “N-nitro ...