Absorption kinetics of semisynthetic human insulin and biosynthetic (recombinant DNA) human insulin.

Absorption kinetics of subcutaneously injected human insulin (recombinant DNA) and semisynthetic human regular insulin were investigated and compared to the respective porcine insulin preparations in normal volunteers. The absorption of all regular human insulin preparations tested was accelerated as compared to porcine insulins. The clinical relevance of these findings in regard to the treatment of diabetes mellitus appears to be doubtful. As for mixtures of porcine regular and intermediate-acting insulin preparations, the absorption of human regular insulin is not altered when mixed with intermediate-acting human insulin.