Eli Lilly and Company stopped manufacturing mixed beef-pork insulins in October of last year. This means only human-based insulin will be available in the United States, and that scares 43-year-old Lucy Hartley.
Hartley, of Buies Creek, NC, is an insulin-dependent diabetic who has used Lilly's Iletin-I beef-pork–based insulin for 32 years. Ten years ago, her endocrinologist switched her to Humulin, Lilly's human-based insulin.
Mitka M. Switch to Human Insulin Worries Some Diabetics. JAMA. 1999;281(2):121-122. doi:10.1001/jama.281.2.121-JMN0113-2-1