Transdermal therapeutic system (TTS) containing oxybutynin

US6555129B1 · kind B1 · utility

Assignee

• Schwarz Pharma Ltd. · DE

Inventors

• Christoph Arth · Düsseldorf, DE
• Andreas Kollmeyer-Seeger · Langenfeld, DE
• Stephan Rimpler · Hilden, DE
• Hans-Michael Wolff · Monheim, DE

Key dates

• Filing date: Oct 26, 2000
• Grant date: Apr 29, 2003
• Expiry date: Oct 26, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P13/10
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A transdermal therapeutic system (TTS) for transcutaneous administration of oxybutynin over a period of several days, in addition to a method for the production of the TTS without the use of solvents, are disclosed. The TTS contains a matrix mass containing oxybutynin in the form of a self-adhesive layer. The matrix mass includes ammonium-group-containing (meth)acrylic polymers, at least one citric acid ester, and 5-25 wt. % oxybutynin.