| abstract |
The present invention provides a patch that is excellent in the storage stability of donepezil or its salt, and can be stably transdermally administered in an amount in which the drug is not obtained. The patch of this invention is laminated | stacked and integrated on the support body 1 and the surface of this support body 1, and copolymerizes the monomer which contains ester of a saturated aliphatic alcohol and (meth) acrylic acid, and does not contain vinylpyrrolidone, It is characterized by including the adhesive layer 2 containing an acrylic adhesive containing the copolymer which consists of a done, and donepezil or its salt. |