Process for preparing a pharmaceutical composition

US6534087B2 · kind B2 · utility

Assignee

• Hoffmann-La Roche Inc. · US

Inventors

• Patrick Busson · Bad Krozingen, DE
• Marco Schroeder · Heidelberg, DE

Key dates

• Filing date: Jun 25, 2001
• Grant date: Mar 18, 2003
• Expiry date: Jun 25, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P43/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A method for the preparation of compositions, preferably pharmaceutical compositions, in form of expanded, mechanically stable, lamellar, porous, sponge-like or foam structures out of solutions and dispersions results in a favored pharmaceutical product. This method comprises the steps of a) preparing a solution or a homogeneous dispersion of a liquid and a compound selected from the group consisting of one or more pharmaceutically active compounds, one or more pharmaceutically suitable excipients, and mixtures thereof, followed by b) the expansion of the solution or the homogeneous dispersion without boiling.