FORMULATION AND EVALUATION OF SUSTAINED RELEASE FLOATING TABLET OF FAMOTIDINE
Patil Bhupendra S.*, Dr. Jain Parag, Dr. Sarode Surajj, Mr. Sathe Bhushankumar, Mr. Jain Bharat, Dr. Vadnere G.P.
ABSTRACT
The purpose of the present study was to prolong the gastric residence
time of Famotidine by developing gastric floating drug delivery system
(GFDDS). And to study influence of different polymers on its release
rate. using gas-forming agents, like sodium bicarbonate, citric acid.
Floating tablets were prepared by wet granulation method using PVP
K-30 as a binder and the other polymers include Xanthan gum, HPMC
K100M, six different formulations with the varying concentrations of
polymers were prepared and the tablets were evaluated in terms of
their pre compression parameters like bulk density, tapped density,
Haunsner ratio,angle of repose, compressibility index, post
compression physical characteristics, in vitro release, buoyancy, floating lag time (FLT),
total floating time (TFT) and swelling index. All the formulations showed good floating lag
time i.e. less than 3 mins. The batch containing combination of Xanthan gum and HPMC
100M (i.e. F-VI) showed total floating lag time more than 12 h., the highest swelling index
among all the prepared batches (i.e. 230 %).The drug release was found to follow zero order
kinetics.
Keywords: Famotidine, floating, floating lag time, floating time.
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