Therapeutic system for the transdermal or transmucous administration of active substances and the use thereof

US5128137A · kind A · utility

Assignee

• LTS Lohmann Therapie-Systeme GmbH Co. KG · DE

Inventors

• Walter Muller · Neuwied, DE
• Michael Roreger · Neuwied, DE
• Heinrich Kindel · Rengsdorf, DE
• Peter Bohnenkamper · Warstein, DE
• Heike Palm · Ochtendung, DE

Key dates

• Filing date: Feb 6, 1990
• Grant date: Jul 7, 1992
• Expiry date: Feb 6, 2010

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K9/7092
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates to a therapeutic system for the transdermal or transmucous administration of active substances via an impermeable backing layer, a reservoir which at least partially comprises active substance, is double-layered and consists of separate parts, and a protective layer, whereby the two reservoir members PA1 (a) are positioned substantially parallely on top of each other, PA1 (b) are separated from each other by a removable intermediate layer being impermeable to the active substances of said reservoir members, PA1 (c) either comprise active substance or auxiliary agents or both at concentrations not corresponding to the distribution equilibrium.