What's Behind the Huge Spike in Insulin Costs? Insurers and Drug Makers Blame Each OtherPrices have skyrocketed in the past five years for insulin, which treats Diabetes. The nation now spends more than $322 billion annually to treat it.Get more newsLiveonPrintApril 24, 2017, 4:57 AM UTC / Updated April 24, 2017, 4:57 AM UTC