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:
Dec. 21, 1993
Filed:
Apr. 10, 1992
Applicant:
Inventor:
Helmut Hettche, Dietzenbach, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424490 ; 424465 ; 424457 ; 424458 ; 424467 ; 424422 ; 424468 ; 424473 ; 424474 ; 424475 ; 424483 ; 424499 ; 424502 ; 514826 ;
Abstract
Azelastine-containing pharmaceutical compositions which provide controlled release of the active substance using a sustained release component. The compositions contain azelastine or a physiologically acceptable salt of azelastine, together with 0.001 to 800 parts of sustained release component for each part by weight of azelastine (calculated as base) and the release rate of azelastine is between 0.05 and 5 mg per hour.