OPTIMIZATION OF GRANULATION TECHNIQUES FOR DEVELOPMENT OF TABLET DOSAGE FORM

The purpose of this study was to optimize the best granulation techniques for development of tablet dosage form. The present study explains comparative study of different wet granulation techniques including Planetary mixer granulation, Rapid mixer granulation, Fluid bed granulation with Direct compression method. Similar formulations were used to evaluate Planetary mixer granulation, Rapid mixer granulation and Fluid bed granulation method. The granules prepared by different techniques were evaluated for particle size distribution, porosity, spherisity, bulk density, flow property and compressibility, compatibility and tablet properties of Diclofenac sodium tablet. The fluid bed granulation technique had superior flow properties, compressibility, compactibility measured by Kawakita, Hekel, Walker and Leuenberger equation. The granules prepared by Fluid bed granulation showed better tablet properties (weight uniformity, hardness, friability and disintegration, drug content, dissolution) and accelerated stability study compared to other granulation techniques so finally, it was concluded that Diclofenac sodium tablets prepared by using fluid bed granulation which meets the required specification compared to other wet granulation techniques and direct compression method. Key words: Granulation technique, Flowability, compressibility, compactibility, Diclofenac sodium tablet.