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.

Date of Patent:
Jun. 10, 2003

Filed:

Jan. 12, 2000
Applicant:
Inventors:

Bojan Kofler, {haeck over (S)}kofja Loka, SI;

Ljubomira Barbara Rebi{haeck over (c)}, Ljubljana, SI;

Judita {haeck over (S)}irca, Ljubljana, SI;

Peter Venturini, Ljubljana, SI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/16 ; A61K 9/36 ; A61K 9/62 ; A61K 9/32 ; A61K 9/58 ;
U.S. Cl.
CPC ...
A61K 9/16 ; A61K 9/36 ; A61K 9/62 ; A61K 9/32 ; A61K 9/58 ;
Abstract

There is disclosed a method for stabilizing active substances that are unstable in acidic medium, unstable when stored for longer periods of time in the presence of water and at the same time sensitive to heating, by means of anhydrous granulation of active substances and dried pharmaceutically acceptable auxiliary substances for the preparation of pellet cores or granules. All pharmaceutically acceptable auxiliary substances employed are dried before use so that their weight loss at drying is less than 1.0% of the total weight of the pharmaceutically acceptable auxiliary substance, preferably less than 0.5%. Organic solvents used in process of anhydrous granulation should contain less than 0.2% of water. A novel pharmaceutical formulation with controlled release of active substances that are unstable in acidic medium, unstable when stored for longer periods of time in the presence of water and at the same time sensitive to heating, is disclosed as well.


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