(Des Moines, IA) – Don’t look now but the price of an Epi-Pen has skyrocketed nearly 400-percent…stressing the budget for many individuals who depend on the life-saving product. One Epi-Pen used to cost around 100-dollars now the price has jumped to 500-dollars. The price hike has caught the attention of Senators Chuck Grassley and Joni Ernst who are demanding answers from the drug company, Mylan who manufactures the product. Company officials say, the price hike came after the only other company manufacturing the product went under.