Polymers in transdermal drug delivery systems

Abstract

Polymers are the backbone of a transdermal drug delivery system. Advances in the field of polymer science have paved the way for transdermal delivery system designs that have considerable flexibility. An impressive amount of technical know-how has been gained in this area of research. This article summarizes the formulation aspects of transdermal drug delivery systems and emphasizes the physicochemical and mechanical properties of various polymers being used in commercially available transdermal drug delivery systems. It is intended as a guide for the selection of polymers for developing such systems.