Bayer Intellectual Property Gmbh

Jenapharm Gmbh & Co. Kg

Jochen Schumacher

Michael Dittgen

Detlef Grawe

Thomas Langguth

Dirk Schenk

Carsten Timpe

Jan-Peter Ingwersen

Hubert Kaffl

Stephan Mletzko

Holger Zimmermann

Herbert Hoffmann

Manfred Suesse

The invention relates to a UV stable transdermal therapeutic system (TTS) consisting of a back layer, at least one matrix containing an active substance and optionally, a withdrawal film and an UV-radiation absorber. An adhesive layer containing said UV-radiation absorber is arranged between the back layer and the matrix containing an active substance which is distant as much as possible from a surface, a separation layer is arranged between the adhesive layer containing said UV-radiation absorber and the matrix containing an active substance, which is as remote as possible from the surface which is impermeable to the active substance and UV-radiation absorber. The inventive transdermal therapeutic system exhibits a high stability and is devoid of inconveniences of existing TTS containing a light-sensitive substance.

UV stable transdermal therapeutic plaster with a UV absorbing self-adhesive layer separated from the drug matrix

This invention relates to a bioadhesive tablet containing at least one bioadhesive adjuvant and at least one lubricant, with at least one surface of the tablet comprising concentric or parallel, straight and/or curved depressions, and to a method for producing the bioadhesive tablets as well as to pharmaceuticals in the form of the bioadhesive tablets.

Bioadhesive tablet

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Bucha, Germany

Jochen Schumacher