6. Olysio
Typical cost for a 30-day supply: $41,800
Treats: hepatitis C
Approved in November 2014, Johnson & Johnson’s Oylsio was one of the first drugs with high hepatitis C cure rates, but it has since lost market share to competitors such as Sovaldi. More than 3 million Americans, including 5 percent of veterans, have hepatitis C, a potentially deadly liver disease.
