Patent ID: 6676962
Filing Date: 2004-01-13
Classification: A61K,A61L,A61P

Abstract:
Topical patch containing as active substance a non-steroid antirheumatic agent having a free carboxyl group, comprising:a backing layer inert to the active substance, which backing layer is made of a material that is elastic in at least one direction; a self-adhesive, active substance-containing matrix layer consisting of a polyacrylate adhesive, which polyacrylate adhesive is crosslinked with multivalent metal ions and comprises free carboxyl groups, the said matrix containing a fatty acid; and a protective sheet to be removed prior to use, wherein said backing layer is made of at least one of an elastic polyester woven fabric or polyester knitted fabric, a nonwoven, a woven or a knitted fabric of polyethylene terephthalate, and a closed-cell, elastic foam, and said matrix comprises one layer and is free of hydroxyl groups.