Rapidly dissolving tablet

US5807576A · kind A · utility

Assignees

• The Board of Regents of the University of Oklahoma · US
• Janssen Pharmaceuticals, Inc. · BE

Inventors

• Loyd V. Allen, Jr. · Edmond, US
• Bingnan Wang · Oklahoma City, US
• John Desmond Davies · Grosse Pointe Farms, US

Key dates

• Filing date: Feb 3, 1994
• Grant date: Sep 15, 1998
• Expiry date: Feb 3, 2014

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K9/2063
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention comprises a tablet, and method for making such, which disintegrates or dissolves in a matter of just a few seconds once placed into the oral cavity. Generally, the method of the present invention comprises up to four steps. First, a porous particulate powder which will serve as the tablet support matrix is produced. In the second step, the pharmaceutical, for example an antihistamine, decongestant, or antibiotic is combined with the powder. Other additives may also be added to the mixture. In the third step the mixture is formed into a tablet. Finally, in the fourth step, a coating may be applied to the outer surface of the tablet to enhance the intactness and durability of the tablet.