Prime Therapeutics — Higher costs are probably the last thing that comes to mind when most people think of coupons. For insurers and pharmacy benefit managers (PBMs), however, coupons used on non-preferred drugs are contributing to escalating health care costs. That’s why I focused on this topic for my presentation at the annual the specialty-focused conference of the Pharmaceutical Management Association’s (sPCMA) conference on Feb. 8, 2016.