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. 30, 2003
Filed:
Oct. 28, 2002
Applicant:
Inventors:
Vilas M. Chopdekar, Edison, NJ (US);
James R. Schleck, Somerset, NJ (US);
Hemant S. Desai, Flemington, NJ (US);
Assignee:
Jame Fine Chemicals, Inc., Bound Brook, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 3/1485 ; C07C 6/988 ; C07D 2/228 ;
U.S. Cl.
CPC ...
A61K 3/1485 ; C07C 6/988 ; C07D 2/228 ;
Abstract
The invention pertains to a composition comprising dextromethorphan tannate and to a method for preparing dextromethorphan tannate by reacting dextromethorphan at a temperature of about 80 to about 180° C. with tannic acid either neat or as an aqueous slurry containing about 5 to about 30 wt. % water. The dextromethorphan tannate has extended release properties and is useful in pharmaceutical compositions as an antitussive for human beings.