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. 14, 1989
Filed:
Oct. 14, 1986
Applicant:
Inventors:
Piergiorgio Rossi, Milan, IT;
Massimo Calanchi, Monza, IT;
Assignee:
Eurand Italia S.p.A., Monza, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L / ;
U.S. Cl.
CPC ...
424468 ; 514464 ;
Abstract
The present invention relates to obtaining isosorbide-5-mononitrate tablets, being also of retard form, which are stable in time. Such embodiment is now possible after the discovery of the stabilizing activity of the with respect to the isosorbide-5-mononitrate with which it forms a solid solution. The use of PVP is essential so that the tablets can remain stable in time: the retard effect in turn can be obtained with the use of hydroxyalkylcelluloses.