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:
Jul. 17, 1984
Filed:
Mar. 30, 1983
Applicant:
Inventors:
Alec D Keith, Miami, FL (US);
Wallace Snipes, State College, PA (US);
Assignee:
Key Pharmaceuticals, Inc., Miami, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L / ; A61F / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 28 ; 424 14 ; 424 16 ; 424 19 ; 424 22 ; 424 78 ; 424 80 ;
Abstract
A self-supporting polymeric diffusion matrix provides for the sustained release of propranolol in order to deliver the propranolol to a patient. The matrix comprises from about 1 to about 60% of a polar plasticizer, from about 6 to about 30% by weight polyvinylalcohol, from about 2 to about 30% by weight polyvinylpyrrolidone, and a pharmaceutically effective amount of propranolol to provide a sustained release of propranolol over a prolonged period.