External plaster containing flurbiprofen
AssigneeTeikoku Seiyaku Co., Ltd.
InventorsMasahiro Yamaji, Takaya Sugawara
Life of this patent
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Abstract
In a plaster for external use for transdermal absorption in which an adhesive layer is laminated on a plastic backing, the adhesive layer contains a styrene-isoprene-styrene block copolymer (SIS), a tackifying resin and a softener which are essential ingredients, and further contains flurbiprofen blended as an active ingredient. The present plaster for external use is a flurbiprofen containing plaster for external use enabling long-term stable release of contained flurbiprofen, and having excellent stability and very high drug releasing property.
Claims4
A plaster for external use in which an adhesive layer 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, and 5 to 60% by weight of a softener which are essential ingredients, and further contains flurbiprofen blended as an active ingredient.
A plaster for external use in which an adhesive layer is laminated on a backing, wherein the adhesive layer contains 10 to 30% by weight of a styrene-isoprene-styrene block copolymer (SIS), 20 to 70% by weight of a rosin resin, and 10 to 50% by weight of a liquid paraffin which are essential ingredients, and further contains flurbiprofen blended as an active ingredient, and wherein a blending amount of the rosin resin with respect to flurbiprofen is 10 times or more by weight ratio.
Dependencies are inferred from the claim text.