Unions say CVS pushed costly drug to doctors

A group of labor unions is launching a campaign that accuses CVS Caremark Corp. of violating patient privacy and improperly pushing doctors to prescribe a costly prescription drug. Change to Win, a group of unions that represents about six million workers, said CVS's pharmacy benefits management business has been urging doctors via a letter to add Merck & Co. diabetes drug Januvia to patients' treatments. The letter said CVS identified the diabetes patients through a review of prescription-drug claims processed by its Caremark unit.