Bring beef pork insulin back to the U.S. and save lives

My mother has been diabetic for 35 years and up until 8 years ago was doing fine on the Eli Lilly beef pork insulin. Since Eli stopped making insulin from beef pork she has over the years slowly deteriated in health. Over the past year she has been in the hospital 5 times, once due to a stroke from extremely high sugar. She eats well as she always has since becoming diabetic, but her current insulin Lantus and Humolog is just not working. Please, please bring the beef pork insulin back to the U.S., I want my mother back!!!!!