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Last Updated: December 16, 2025

Claims for Patent: 5,393,529

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Summary for Patent: 5,393,529

Title:	Estrogen-containing active substance plaster
Abstract:	The present invention relates to active substance plasters for the controlled release of active substances to the skin consisting of a backing layer, an adhesive film connected therewith which film is water-soluble and consists of pressure-sensitive adhesive which comprises water-swellable polymers and in which the active substance is at least partially soluble, and of a removable protective layer covering the adhesive film, in which plasters the pressure-sensitive adhesive is based on homo and/or copolymers with at least one derivative of the acrylic or methacrylic acid, and which comprise as active substances, partially or completely dissolved in the adhesive, at a concentration of 0.5 to 10.0%-wt estrogens and their pharmaceutically acceptable derivatives alone or in combination with gestagens.
Inventor(s):	Hans-Rainer Hoffmann, Robert P. Klein, Reinhold Meconi, Gunter Cordes, Hans M. Wolff
Assignee:	UCB Pharma GmbH, LTS Lohmann Therapie Systeme AG
Application Number:	US08/074,698
Patent Claims:

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