cost humulin insulin
But prices of U-500 and regular human insulin weren't always equal. In 2007, regular Humulin cost $0.04 per unit of insulin -- twice that of the $0.02 price tag on each unit of insulin in U-500. Realizing Potential. Demand for U-500 began escalating about 5 years ago, in lock-step with a worsening epidemic of obesity and diabetes.