PHARMACEUTICAL COMPOSITIONS OF CARVEDILOL SALTS AND PROCESS FOR PREPARATION THEREOF

摘要

The present invention relates provides pharmaceutical compositions comprising an amorphous carvedilol salt and one or more pharmaceutically acceptable excipients, wherein the amorphous carvedilol salt is formed in situ during the preparation of the pharmaceutical composition. The amorphous carvedilol salt is preferably an amorphous carvedilol phosphate salt. The pharmaceutical compositions can be prepared by providing one or more inert cores; contacting the core or cores with a solution or a dispersion comprising carvedilol, an acid component and optionally a binder, in a solvent; removing the solvent; and optionally coating the core or cores with an extended release composition. Preferred pharmaceutical compositions contain both immediate-release pellets and at least one population of extended-release pellet.