Patent ID: 9585862
Date: 2017-03-07
CPC Classifications: A61K,A61L,A61P

Claim:
1. A rivastigmine-containing patch, comprising: (a) a drug-containing adhesive layer comprising rivastigmine free base, a copolymer of butyl methacrylate and methyl methacrylate, and an adhesive; and (b) a layer for adhering to the skin comprising a silicon adhesive, wherein the adhesive in the drug-containing adhesive layer is a random copolymer of 58 to 66 parts by weight of 2-ethylhexyl acrylate, 28 to 36 parts by weight of methyl acrylate and 4 to 8 parts by weight of acrylic acid, and wherein the drug-containing adhesive layer and the layer for adhering to the skin do not contain tocopherol.