WASHINGTON (AP) — New government numbers show that a financial safeguard for Medicare beneficiaries has become a way for pharmaceuticals to get billions of dollars for pricey medications at taxpayer expense. The cost of Medicare's "catastrophic" prescription coverage jumped by 85 percent in three years, from $27.7 billion in 2013 to $51.3 billion in 2015. That's according to the program's Office of the Actuary, which provided the figures to The Associated Press. Out of some 2,750 drugs covered by Medicare's Part D benefit, two pills for hepatitis C infection — Harvoni and Sovaldi— accounted for nearly $7.5 billion in catastrophic costs in 2015. Taxpayers cover 80 percent of catastrophic costs.Read more on NewsOK.com