Formulation and evaluation of Gastro-retentive drug delivery system using Fenugreek gum as novel matrixing agent

Abstract

The purpose of this study was to evaluate efficiency of fenugreek gum for developing gastro retentive floating tablets of Sumatriptan succinate when used alone or in combination with established polymers. The floating Tablet were prepared by direct compression and wet granulation technique and evaluated for various parameters like physical characterization, hardness, friability, weight variation, drug content uniformity, swelling index and in-vitro buoyancy and drug release. Fenugreek gum was efficient as release retardant and floating agent when used alone or in combinations with HPMC. The results indicated that fenugreek gum effectively sustained release for 12 hrs with parameters such as floating lag time, buoyancy, and floating time in acceptable range. In-vitro drug release kinetics evaluated using the linear regression method was found to follow the Higuchi release kinetics equation. This suggests that fenugreek gum can be a novel hydrophilic polymer in designing of FDDS.