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:
Sep. 04, 2001
Filed:
Aug. 28, 1998
Applicant:
Inventors:
Per Johan Lundberg, Mölndal, SE;
Mikael Thune, Mölndal, SE;
Assignee:
AstraZeneca AB, Sodertalje, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/46 ; A61K 9/48 ; A61K 9/16 ;
U.S. Cl.
CPC ...
A61K 9/46 ; A61K 9/48 ; A61K 9/16 ;
Abstract
The present invention is related to an effervescent pharmaceutical preparation comprising effervescent excipients and a plurality of individual units comprising a pharmaceutically active compound and optional excipients wherein the units (,) are provided with a floating generating system. The floating generating systems comprises at least two coating layers, one of which is a gas generating layer (,) and the other layer is a barrier layer (,) enclosing the generated gas. Furthermore the invention is related to a process for the manufacture of the dosage forms, and their use in medicine.