Abstract: A packaging bag according to one example includes: a bag body configured to store a plurality of folded patches; an opening formed in the bag body; and a flap label configured to cover the opening such that the opening is capable of being opened and closed. The opening is formed such that Lp/La is 1.5 to 2.5 and Lq/Lb is 1.8 to 2.8, where La denotes a first length of the opening along a first direction, Lp denotes a first length of the folded patch along the first direction, Lb denotes a second length of the opening along a second direction orthogonal to the first direction, the second length being shorter than the first length, and Lq denotes a second length of the folded patch along the second direction.

Abstract: A gel patch comprising a plaster layer on a support, the plaster layer comprising a mixture of at least a neutralized polyacrylic acid, a poly(methyl acrylate/2-ethylhexyl acrylate) emulsion, and water, wherein the poly(methyl acrylate/2-ethylhexyl acrylate) emulsion is an emulsion having an evaporation residue of 57 to 61% by heating at or above the boiling point of the medium and is present in an amount of at least 2.5 times and preferably at least 3 times the mass of the neutralized polyacrylic acid.

Abstract: The invention provides a gel patch comprising a support and an adhesive layer on the support, wherein the adhesive layer comprises 1.5 to 2.5 mass % of ketoprofen, 1.5 to 2.5 mass % of 4-tert-butyl-4?-methoxydibenzoylmethane and 12 to 18 mass % of propylene glycol, based on the total mass of the adhesive layer.

Abstract: The invention provides a gel patch comprising a support and an adhesive layer on the support, wherein the adhesive layer comprises 1.5 to 2.5 mass % of ketoprofen, 1.5 to 2.5 mass % of 4-tert-butyl-4?-methoxydibenzoylmethane and 12 to 18 mass % of propylene glycol, based on the total mass of the adhesive layer.

Abstract: A gel patch comprising a plaster layer on a support, the plaster layer comprising a mixture of at least a neutralized polyacrylic acid, a poly(methyl acrylate/2-ethylhexyl acrylate) emulsion, and water, wherein the poly(methyl acrylate/2-ethylhexyl acrylate) emulsion is an emulsion having an evaporation residue of 57 to 61% by heating at or above the boiling point of the medium and is present in an amount of at least 2.5 times and preferably at least 3 times the mass of the neutralized polyacrylic acid.

Abstract: An adhesive preparation comprising a stretchable support and an adhesive layer laminated on at least one side of the support, wherein the stretchable support comprises a interlock woven fabric subjected to crimping processing, the adhesive layer contains 10% by mass or more of methyl salicylate with respect to the total mass of the layer, the whole adhesive preparation has moisture permeability of 1 to 350 g/m2·24 hr measured at a temperature of 40° C. and a relative humidity of 90%, and the methyl salicylate has a plasma AUC0-24 ranging from 3.0 to 60.0 ng·hr/mL in terms of a mean±standard deviation, and salicylic acid as a metabolite of the methyl salicylate has a plasma AUC0-24 ranging from 5000 to 13000 ng·hr/mL in terms of a mean±standard deviation, when the adhesive preparation is applied to a human skin for 8 hours such that an application amount of the adhesive layer applied is 50 to 300 g/m2 and a contact area is 280 cm2.

Abstract: A lidocaine-containing hydrogel patch comprising: a support layer; and a adhesive layer stacked on a surface of the support layer, wherein the adhesive layer comprises at least one selected from the group consisting of lidocaine and pharmaceutically acceptable salts thereof, a total content of the lidocaine and the pharmaceutically acceptable salts thereof is 3 to 8% by mass relative to an entire mass of the adhesive layer, the adhesive layer further comprises oleic acid in an amount of 0.3 to 1% by mass relative to the entire mass of the adhesive layer, and a pH of the adhesive layer is 6.8 to 7.4.

Abstract: An adhesive preparation comprising a stretchable support and an adhesive layer laminated on at least one side of the support, wherein the stretchable support comprises a interlock woven fabric subjected to crimping processing, the adhesive layer contains 10% by mass or more of methyl salicylate with respect to the total mass of the layer, the whole adhesive preparation has moisture permeability of 1 to 350 g/m2·24 hr measured at a temperature of 40° C. and a relative humidity of 90%, and the methyl salicylate has a plasma AUC0-24 ranging from 3.0 to 60.0 ng·hr/mL in terms of a mean±standard deviation, and salicylic acid as a metabolite of the methyl salicylate has a plasma AUC0-24 ranging from 5000 to 13000 ng·hr/mL in terms of a mean±standard deviation, when the adhesive preparation is applied to a human skin for 8 hours such that an application amount of the adhesive layer applied is 50 to 300 g/m2 and a contact area is 280 cm2.

Abstract: An adhesive preparation comprising a stretchable support and an adhesive layer laminated on at least one side of the support, wherein the stretchable support comprises a interlock woven fabric subjected to crimping processing, the adhesive layer contains 10% by mass or more of methyl salicylate with respect to the total mass of the layer, the whole adhesive preparation has moisture permeability of 1 to 350 g/m2·24 hr measured at a temperature of 40° C. and a relative humidity of 90%, and the methyl salicylate has a plasma AUC0-24 ranging from 3.0 to 60.0 ng·hr/mL in terms of a mean±standard deviation, and salicylic acid as a metabolite of the methyl salicylate has a plasma AUC0-24 ranging from 5000 to 13000 ng·hr/mL in terms of a mean±standard deviation, when the adhesive preparation is applied to a human skin for 8 hours such that an application amount of the adhesive layer applied is 50 to 300 g/m2 and a contact area is 280 cm2.

Abstract: A lidocaine-containing hydrogel patch comprising: a support layer; and a adhesive layer stacked on a surface of the support layer, wherein the adhesive layer comprises at least one selected from the group consisting of lidocaine and pharmaceutically acceptable salts thereof, a total content of the lidocaine and the pharmaceutically acceptable salts thereof is 3 to 8% by mass relative to an entire mass of the adhesive layer, the adhesive layer further comprises oleic acid in an amount of 0.3 to 1% by mass relative to the entire mass of the adhesive layer, and a pH of the adhesive layer is 6.8 to 7.4.

Abstract: An adhesive preparation comprising a stretchable support and an adhesive layer laminated on at least one side of the support, wherein the stretchable support comprises a interlock woven fabric subjected to crimping processing, the adhesive layer contains 10% by mass or more of methyl salicylate with respect to the total mass of the layer, the whole adhesive preparation has moisture permeability of 1 to 350 g/m2·24 hr measured at a temperature of 40° C. and a relative humidity of 90%, and the methyl salicylate has a plasma AUC0-24 ranging from 3.0 to 60.0 ng·hr/mL in terms of a mean±standard deviation, and salicylic acid as a metabolite of the methyl salicylate has a plasma AUC0-24 ranging from 5000 to 13000 ng·hr/mL in terms of a mean±standard deviation, when the adhesive preparation is applied to a human skin for 8 hours such that an application amount of the adhesive layer applied is 50 to 300 g/m2 and a contact area is 280 cm2.

Abstract: An adhesive preparation comprising a stretchable support and an adhesive layer laminated on at least one side of the support, wherein the stretchable support comprises a interlock woven fabric subjected to crimping processing, the adhesive layer contains 10% by mass or more of methyl salicylate with respect to the total mass of the layer, the whole adhesive preparation has moisture permeability of 1 to 350 g/m2·24 hr measured at a temperature of 40° C. and a relative humidity of 90%, and the methyl salicylate has a plasma AUC0-24 ranging from 3.0 to 60.0 ng·hr/mL in terms of a mean±standard deviation, and salicylic acid as a metabolite of the methyl salicylate has a plasma AUC0-24 ranging from 5000 to 13000 ng·hr/mL in terms of a mean±standard deviation, when the adhesive preparation is applied to a human skin for 8 hours such that an application amount of the adhesive layer applied is 50 to 300 g/m2 and a contact area is 280 cm2.

Abstract: An adhesive preparation comprising a stretchable support and an adhesive layer laminated on at least one side of the support, wherein the stretchable support comprises a interlock woven fabric subjected to crimping processing, the adhesive layer contains 10% by mass or more of methyl salicylate with respect to the total mass of the layer, the whole adhesive preparation has moisture permeability of 1 to 350 g/m2·24 hr measured at a temperature of 40° C. and a relative humidity of 90%, and the methyl salicylate has a plasma AUC0-24 ranging from 3.0 to 60.0 ng·hr/mL in terms of a mean±standard deviation, and salicylic acid as a metabolite of the methyl salicylate has a plasma AUC0-24 ranging from 5000 to 13000 ng·hr/mL in terms of a mean±standard deviation, when the adhesive preparation is applied to a human skin for 8 hours such that an application amount of the adhesive layer applied is 50 to 300 g/m2 and a contact area is 280 cm2.

Abstract: Packaged patch (10) according to the invention comprises patch (2) situated in space (4) inside patch package (3) composed of laminated packaging material (1), and its edges are sealed. Laminated packaging material (1) comprises hygroscopic material layer (13) made of LDPE containing 20–40 wt % of an inorganic filler, situated between moisture-permeable material layer (14) made of LDPE and having a moisture permeability of 40–120 g/m2/day and a screen material layer which blocks penetration of moisture, etc. and is composed of HDPE layer (12) and aluminum foil (11). The saturation hygroscopicity of laminated packaging material (1) is 2–30 g/m2 under atmosphere conditions with a temperature of 25° C. and a relative humidity of 75%. This construction sufficiently reduces the effect of moisture on a drug in patch (2) and allows patch (2) to be held in a stable state for prolonged periods, while also improving the economy and handleability of patch package (3).

Abstract: A transdermal patch which comprises: a substrate sheet comprises a composite film formed of a resin composition comprising 100 parts by weight of a polyvinyl chloride-polyurethane composite and 2-10 parts by weight of a styrene-ethylene-butylene-styrene copolymer, a first adhesive layer on the one side of the composite film, and a polyalkylene terephthalate film adhered to the one side of the composite film by means of the first adhesive layer, a primer layer which comprises a saturated polyester resin and is formed on the surface of the polyalkylene terephthalate film; and a second adhesive layer comprising a styrene-diene-styrene block copolymer containing a pharmaceutical agent layered on the primer layer.