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:
Nov. 29, 1988
Filed:
Dec. 09, 1985
Applicant:
Inventors:
Franz X Fischer, Riehen, CH;
Satish C Khanna, Bottmingen, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 79 ; 514289 ; 514850 ;
Abstract
A pharmaceutical preparation for controlled, sustained release of dextromethorphan comprising a polystyrene sulfonate resin which has been cross-linked with about 3% to about 10% divinyl benzene, having an average particle size of at least 48 .mu.m and less than 100 .mu.m onto which dextromethorphan has been loaded in a ratio of dextromethorphan hydrobromid to resin of about 1:3 to about 1:10 and at least one pharmaceutically acceptable adjuvant.