SPL Set ID: e49f701d-c19f-4cb2-b63f-01a917b33abc

Insulin lispro is a rapid-acting insulin analog produced by recombinant DNA technology utilizing a non-pathogenic laboratory strain of Escherichia coli . Insulin lispro differs from human insulin in that the amino acid proline at position B28 is replaced by lysine and the lysine in position B29 is replaced by proline. Chemically, it is Lys(B28), Pro(B29) human insulin analog and has the empirical formula C 257 H 383 N 65 O 77 S 6 and a molecular weight of 5.808 kDa, both identical to that of human insulin. Insulin Lispro Protamine and Insulin Lispro Mix75/25 is a mixture of 75% insulin lispro protamine, an intermediate-acting human insulin analog, and 25% insulin lispro, a rapid-acting human insulin analog. Insulin lispro protamine suspension is a suspension of crystals produced from combining insulin lispro and protamine sulfate under appropriate conditions for crystal formation. Insulin lispro has the following primary structure: Insulin Lispro Protamine and Insulin Lispro Mix75/25 injectable suspension is a white and cloudy, sterile suspension for subcutaneous use. Each mL of Insulin Lispro Protamine and Insulin Lispro Mix75/25 contains 100 units of insulin lispro; dibasic sodium phosphate (2.0 mg), glycerin (16 mg), metacresol (1.76 mg), phenol (0.715 mg), protamine sulfate (0.28 mg), zinc oxide content adjusted to provide zinc ion (0.025 mg), and Water for Injection, USP. The pH is 7.0 to 7.8. Sodium hydroxide and/or hydrochloric acid is added during manufacture to adjust the pH. Primary Structure