TRANSDERMAL ABSORPTION PREPARATION

摘要

A transdermal absorption preparation having a support and a pressure-sensitive adhesive layer consisting of multiple layers, wherein the pressure-sensitive adhesive layer comprises a drug-retaining layer containing a drug and an acrylic pressure-sensitive adhesive and a skin adhesion layer containing a styrene-isoprene-styrene block copolymer. This preparation can continuously release bisoprolol at a constant concentration. Moreover, it can be easily produced.