Abuse-proofed dosage system

US7776314B2 · kind B2 · utility

Assignee

• GRUNENTHAL GMBH · DE

Inventors

• Johannes BARTHOLOMÄUS · Aachen, DE
• Heinrich Kugelmann · Aachen, DE

Key dates

• Filing date: Dec 9, 2004
• Grant date: Aug 17, 2010
• Expiry date: Oct 13, 2026

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P25/26
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to a solid administration form, protected from parenteral abuse and containing at least one viscosity-increasing agent in addition to one or more active substances that have parenteral abuse potential. The agent forms, when a necessary minimum amount of an aqueous liquid is added, on the basis of an extract obtained from the administration form, a preferably injectable gel that remains visually distinct when introduced into another quantity of an aqueous liquid.