With the purpose of providing patches which do not cause photodecomposition of drugs even when exposed to the direct rays of the sun and which exhibit satisfactory drug effects and are excellent in physical properties and stability of pharmaceutical preparations, the invention provides a patch comprising a polyester substrate and a pressure-sensitive adhesive layer formed on one surface of the substrate and containing a nonsteroidal anti-inflammatory drug (NSAID) wherein the substrate contains a hydroxyphenylbenzotriazole derivative represented by the general formula (1): wherein R 1 and R 2 are each independently hydrogen or C 1-8 alkyl； and X is halogen atom.
