Patent ID: 9220690
Filing Date: 2015-12-29
Classification: A61K,A61P

Abstract:
1. A patch containing, an adhesive matrix dispersed therein, diclofenac or a pharmaceutically acceptable salt thereof, thiocolchicoside and optionally pharmaceutically acceptable excipients, wherein (i) the adhesive matrix comprises component A as a copolymer of acrylic or methacrylic acid or its esters; component B as a cationic copolymer obtained by copolymerization of dimethylamionethyl-methacrylate and methacrylic acid neutral esters comprising methyl, ethyl and butyl esters; and component C as a cationic copolymer obtained by copolymerization of ethyl acrylate, methyl methacrylate and (trimethylammonium)methyl-methacrylate; (ii) the total quantity of components A and B in the adhesive matrix ranges from 50 to 90% of the total weight of the dried adhesive matrix; and (iii) component C is present in an amount ranging from 0.1 to 10% of the total weight of the dried adhesive matrix.