abstract |
(I) a gel pack containing a hydrogel preparation, and (ii) a top layer and a bottom layer, a plurality of openings extending through the microprojection member, and a plurality of stratum corneum through microprotrusions protruding from the bottom layer of the microprojection member (Wherein the microprojection member receives a gel pack so that the hydrogel preparation flows through the opening of the microprojection member) and transdermally delivers a biologically effective substance. Device to do. The hydrogel preparation preferably comprises a water-based hydrogel. |