FDA says drugmakers have recalled a blood pressure medicine tainted with a cancer

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

New Jersey-based Teva Pharmaceuticals USA and drugs distributor Amerisource Health Services issued voluntary nationwide recalls earlier this month of more than 580,000 bottles of various strengths of prazosine capsules, according to the FDA.