This study focuses on understanding the physicochemical principles for the preparation of high drug-loaded microgranules with a desired size distribution and mechanical properties. Mesalamine was selected as a model drug, and microgranulation was performed using an extruder and a conical screen mill.
Abstract Temperature has rarely been examined in twin-screw wet granulation despite the obvious capabilities of the extruder for operating at elevated temperatures. The present work investigates the wetting behavior of a mixture of powders with different sorption characteristics at various temperatures to explain the unique granulation behavior witnessed with high molecular weight hydroxypropyl methylcellulose in a twin-screw extruder. The work studies the twin-screw granulation of a controlled...