Pharmacology of insulin detemir.

Insulin detemir (Levemir [Novo Nordisk A/S, Bagsvaerd, Denmark]) is a soluble, long-acting basal insulin analog. It differs from human insulin in that the amino acid threonine in position B30 has been removed and a 14-carbon fatty acid (myristic acid) has been acylated to lysine at B29. This modification increases self-association and enables albumin binding of insulin detemir. In this manuscript, the unique molecular properties and the resulting pharmacodynamics of insulin detemir are reviewed. The protracted duration of action, smooth activity profile, and low intrapatient variability of insulin detemir are presented as properties that may potentially help patients maximize glycemic control and minimize the long-term complications of diabetes.