Cover material and plaster with cover material

Abstract

The present invention provides a cover material 10, adapted to be attached to skin in a manner covering over the entirety of a patch 20, comprising a pressure-sensitive adhesive layer 12 on one side of a support 11, wherein said patch 20 comprises a drug-containing layer 22 for contacting with the skin, said layer being provided on a support film 21 with a thickness of 12-30 μm, and wherein the cover material 10 is adapted to be attached to said support film 21 and a region of the skin around said patch 20 in such a manner that the pressure-sensitive adhesive layer 12 contacts with the edges of the drug-containing layer 22, and the pressure-sensitive adhesive layer 12 comprises a pressure-sensitive adhesive obtained by polymerizing vinyl acetate or N-vinyl-2-pyrrolidone and a (meth)acrylic acid alkyl ester with a C8 alkyl group as essential monomer components. According to the invention, it is possible to provide a cover material capable of reducing irritation to an affected area such as skin when a patch employing a drug such as pergolide mesylate is covered and affixed to the affected area.

Dependencies are inferred from the claim text.