External plaster containing flurbiprofen

摘要

Disclosed is a flurbiprofen containing plaster for external use which allows the long-term release of the contained flurbiprofen, and possesses excellent stability and a very high drug releasing property, wherein the plaster has an adhesive layer which is laminated on a backing, wherein the adhesive layer contains 5 to 50% by weight of a styrene-isoprene-styrene block copolymer (SIS), 20 to 70% by weight of a tackifying resin (such as a rosin-based resin), and 5 to 60% by weight of a softener (such as a liquid paraffin) which are essential ingredients, and further contains flurbiprofen blended as an active ingredient, and wherein a blending amount of the tackifying resin with respect to flurbiprofen is 10 times or more by weight ratio.