Patent ID: 8741332
Filing Date: 2014-06-03
Classification: A61K,A61L

Abstract:
1. A formulation for treating neuropathic pain, comprising: a) at least one drug selected from the group consisting of ropivacaine, acyclovir, valacyclovir, pencyclovir, lidocaine, tetracaine, amitriptyline, ketamine, and combinations thereof; b) a solvent vehicle, comprising: c) a peel-forming agent, wherein the formulation has a viscosity suitable for application and adhesion to a skin surface prior to evaporation of the volatile solvent system, wherein the formulation applied to the skin surface forms a solidified layer after at least partial evaporation of the volatile solvent system within about 15 minutes of application to the skin surface under standard skin and ambient conditions, and wherein the drug continues to be dermally delivered at the therapeutically effective rate after the volatile solvent system is evaporated.