FDA says drug makers have recalled a blood pressure medicine tainted with a cancer-causing chemical

The U.S. Food and Drug Administration says drug makers have recalled more than a half-million bottles of the blood pressure medication prazosin hydrochloride over concerns it may include a cancer-causing chemical.The U.S. Food and Drug Administration says drug makers have recalled more than a half-million bottles of the blood pressure medication prazosin hydrochloride over concerns it may include a cancer-causing chemical.