Insulin prices are only getting more painful.
Drugmakers Eli Lilly (LLY) and Novo Nordisk recently boosted their insulin list prices by almost 8 percent each, adding to concerns that treating diabetes is unaffordable for some patients. The average price of insulin almost tripled between 2002 and 2013, according to the American Diabetes Association (ADA). Even before the most recent price hike, some diabetics were cutting back or even going without the drug because of its expense.