Active substance-containing plaster for the controlled administration of active substances to the skin

US5538736A · kind A · utility

Assignee

• LTS Lohmann Therapie-Systeme AG · DE

Inventors

• Hans-Rainer Hoffmann · Neuwied, DE
• Karin Wolter · Melsbach, DE
• Gunter Simon · Hillesheim, DE
• Peter Barth · Neuwied, DE

Key dates

• Filing date: Sep 14, 1994
• Grant date: Jul 23, 1996
• Expiry date: Sep 14, 2014

Classification

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

Abstract

The invention relates to an active substance-containing plaster for the controlled administration of active substances to the skin, which has a back and a skin side, with a back layer, an active substance reservoir divided substantially perpendicularly to the skin contact surface of the plaster and having one or more active substances, a contact adhesive device on the skin side and optionally a cover layer detachable prior to the application of the plaster, whereas at least one active substance reservoir part (12) is detachable from the skin, while leaving behind one or more active substance reservoir parts (13) on the skin. For this object there is provided that the part of the active substance reservoir remaining on the skin is having a better adhesion to the skin than to the back layer (11).