Patent ID: 9084723
Filing Date: 2015-07-21
Classification: A61C,A61K,A61L,A61Q,C08L

Abstract:
1. A system comprising, (i) an outer erodible backing member that serves as an external surface following application to a mucosal body surface or oral cavity, (ii) a surface contact adhesive layer adhered to the backing member, the surface contact adhesive layer comprised of a hydrogel comprising a water-swellable, water-insoluble polymer, a blend of a hydrophilic polymer with a complementary oligomer capable of hydrogen or electrostatic bonding to the hydrophilic polymer, and an active agent, wherein the outer erodible backing member comprises a polymer selected from the group consisting of acrylate polymers, cellulosic polymers, starches, alginates, polyamino acids and combinations thereof, and erodes in a moist environment at a slower rate than the surface contact adhesive layer.