The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 2005
Filed:
Oct. 12, 1999
Applicants:
Gérard Alaux, Beynes, FR;
Frédéric Andre, Antony, FR;
Alain Cuine, Saint Fargeau-Ponthierry, FR;
Gareth Lewis, Dourdan, FR;
Inventors:
Gérard Alaux, Beynes, FR;
Frédéric Andre, Antony, FR;
Alain Cuine, Saint Fargeau-Ponthierry, FR;
Gareth Lewis, Dourdan, FR;
Assignee:
Sanofi-Synthelabo, Paris, FR;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K009/24 ; A61K009/00 ; A61K009/20 ; A61K009/22 ; A61K009/46 ;
U.S. Cl.
CPC ...
Abstract
The invention concerns a pharmaceutical composition with gastric residence and controlled release, characterized in that it comprises two or three layers and contains (a) an active principle associated with a excipient modifying its release; (b) a system generating carbon dioxide in a swelling polymer hydrophilic matrix; (a) and (b) capable of being included in a common layer or in separate layers.