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:
Feb. 25, 2003
Filed:
Jul. 20, 1998
Applicant:
Inventors:
Assignee:
ANDRX Pharmaceuticals, Inc., Davie, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/52 ; A61K 9/54 ; A61K 3/1554 ;
U.S. Cl.
CPC ...
A61K 9/52 ; A61K 9/54 ; A61K 3/1554 ;
Abstract
A controlled release diltiazem dosage formulation comprising a plurality of active pellets coated with an extended release coating wherein the active pellets contain diltiazem or a pharmaceutically acceptable salt, a pharmaceutically acceptable inert seed and a binder and the extended release coating contains a water insoluble water permeable polymer, a channeling agent, a lubricant and optionally a surfactant. A single batch intermittent method of manufacturing a heterogeneous population of extended release pellets for use as a dosage formulation is also disclosed.