Patent ID: 7744918

Claim:
A patch containing a drug selected from the group consisting of oxybutynin, fentanyl, pergolide, tandospirone, donepezil, tamsulosin, risperidone, flurazepam, butorphanol, perisoxal, pridinol, trihexyphenidyl, amantadine, tulobuterol, isoprenaline, propranolol, ketotifen, difenidol, morphine, meloxicam, valdecoxib and celecoxib, an adhesive base, at least one melting point lowering agent that lowers the melting point of the drug to increase skin permeation rate of the drug, wherein the melting point lowering agent is one or more selected from the group consisting of acetic acid, propionic acid, butyric acid, lactic acid, benzoic acid and salicylic acid, and a corresponding salt of the melting point lowering agent.