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:
Apr. 17, 2012
Filed:
Oct. 30, 2007
Pawan Seth, Irvine, CA (US);
Paul J. Maes, Toronto, CA;
Pawan Seth, Irvine, CA (US);
Paul J. Maes, Toronto, CA;
Valeant International (Barbados) SRL, Welches, BB;
Abstract
The present invention relates to a modified release composition of at least one form of tramadol which is a delayed and extended release composition for oral administration suitable for once daily dosing. That composition comprises a core comprising at least one form of tramadol selected from the group consisting of tramadol, racemic mixtures thereof, enantiomers thereof, pharmaceutically acceptable salts thereof, and combinations thereof in combination with a pharmaceutically acceptable excipient. That composition further comprises a modified release coating which substantially surrounds said core. The compositions of the invention provide delayed and extended release of said at least one form of tramadol such that the mean plasma concentration of the at least one form of tramadol reaches a therapeutically effective level at a time which is after at least about 3 hours after first administration.