FORMULATION AND EVALUATION OF IMMEDIATE RELEASE TABLETS OF METFORMIN HYDROCHLORIDE ON LABORATORY SCALE

Abstract

The purpose of this research is to prepare metformin hydrochloride immediate release tablets by wet granulation technique. In order to obtain the best, optimized product ten different formulations were developed. Different binder, disintegrants and lubricants taken as variables. Weight variation, thickness, hardness, friability, disintegration time, in-vitro release and pharmaceutical assay were studied as response variables. Capping was observed in formulation containing PVP K-30. However, in the remaining formulation containing PVP K-90, no capping was observed. The formulation A7 was selected as optimized formulation. The different physical properties and in-vitro release profile showed best comparable with the reference product. Optimization has proven an effective tool in product development.