Process for directly compressible co-processed excipient for modified release application

A process for producing a co-processed directly compressible excipient comprising the steps of:

• a) mixing water insoluble diluent and water to form wet mass of diluent;
• b) unloading wet mass of step (a) and collect in a collector;
• c) performing dry blending by loading pre-sifted hydrophilic swellable polymer in high shear mixer granulator having impeller-chopper combination and dry mix;
• d) slow addition of wet mass of diluent of step (a) to the dry powder blend of step (c) to granulate dry blend and addition of binder during granulation;
• e) discharging wet granulated mass and drying it in fluidized bed dryer;
• and
• f) addition of glidant and/or lubricants to the dried and sized granules.