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:
May. 30, 1989
Filed:
Nov. 12, 1987
Euroceltique, S.A., Luxembourg, LU;
Abstract
A solid, controlled release pharmaceutical composition is provided with enhanced levels of control over drug release. The composition comprises an acid addition salt or a quarternary ammonium salt of an organic base drug complexed with an anionic surfactant and distributed in a matrix of a hydrophilic polymer. The complex formation between the drug which is preferably an acid addition salt of an organic an organic amine, and the surfactant, which is preferably a sulphosuccinate, distributed in the hydrophilic polymer matrix, which is preferably a water soluble hydroxyalkylcelulose ether results in a composition with excellent controlled released characteristics.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile