Provided is a transdermal preparation, which is capable of long-term (1-day to 7-day) release of a basic drug from a preparation, continuously and at a consistent concentration; shows little reduction over time in the drug content, even if multiple drugs are contained in the preparation; and is produced by a simple process. The transdermal preparation comprises a substrate, and an adhesive layer containing a basic drug and a water-soluble polymer.

Claims

14 · 1 independent · depth 4

14 granted claims

›1.independentA transdermal preparation having a backing and an adhesive layer for delivering a selected amount of bisoprolol through the skin continuously for a pe…+13

›2.↳ 1The transdermal preparation according to claim 1 wherein the water-soluble polymer is one or more kind selected from the group consisting of cellulose…d2+2

›4.↳ 1The transdermal preparation according to claim 1, wherein the skin adhesion layer comprises styrene-isoprene-styrene block copolymer.d2+4

›9.↳ 1The transdermal preparation according to claim 1, wherein the adhesive layer further comprises one or more kinds selected from the group consisting of…d2+1

›12.↳ 1The transdermal preparation according to claim 1, wherein the basic drug is a free base of bisoprolol.d2

›13.↳ 1A method for producing the transdermal patch according to claim 1 by laminating the drug reservoir layer with the skin adhesion layer.d2

›14.↳ 1A method for delivering a certain amount of a drug through the skin continuously for a period of 1 to 7 day(s) by applying the transdermal preparation…d2

Classifications

4 codes

IPC · International Patent Classification

Section A — Human necessities

A61K9/70

USPC · US Patent Classification

424/443424/401424/400

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3.2 y

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Janet Epps-Smith

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Type	Document	Date
related publication	US 20120058175 A1	8 Mar 2012

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