prepare and evaluate mucoadhesive drug delivery system of Ranitidine hydrochloride tablet using hydrophilic polymers in order to reduce dose frequency to match the initial release of the drug with the conventional dosage form. The formulation was designed adopting optimization technique, which helps in setting up experiments in such a manner that the information is obtained as efficiently and precisely as possible. Initially, considering buoyancy as the main criteria, blank tablets were compressed for different formulae with various polymers HPMC K 15 M, HPMC K 100 M, Carbopol 934. The tablets were prepared by direct compression method and evaluated for Ranitdine content, in vitro release profile and buoyancy. The dissolution study was carried out in simulated gastric fluid using USP dissolution test apparatus employing paddle stirrer.. This indicates the suitability of the technique chosen for the present dosage form.

Amlodipine used as an anti-hypertensive and in the treatment of angina. FDT of amlodipine besylate were prepared using different superdisintegrants by direct compression method. Mannitol was used as a diluent. Aspartame and Acesulfame Potassium were used for unpleasant taste masked from the amlodipine by cosifting and serial of blending with other excipients. The mixed final blend was then compressed into tablets. The formulations were evaluated for weight variation, hardness, friability, wetting time, disintegrating time, dissolution, taste evaluation study and in vitro dispersion time.

The objective of this research work was to formulate and evaluate the floating drug delivery system containing Albendazole, an anthelmintic drug, using different polymers and to optimize the best formulation. Different excipients were tested for their compatibility with Albendazole by the FTIR studies. Present study has demonstrated the successful utilization of technique of FT IR to assesst he compatibility of Albendazole with the excipients used in the development of floating drug delivery system of Albendazole. Based on the results of FT-IR studies, majority of the excipients were found to be compatible with Albendazole which were then used in the preparation of Albendazole floating tablets. Albendazole tablets were prepared by wet granulation technique using HPMC, HPMC K4M and chitosan as polymers, stearic acid, citric acid, lactose and gas generating agent such as sodium bicarbonate were taken as independent variables. It was then evaluated by using USP-II (Paddle) apparatus containing 0.1 N HCl as a dissolution media. The release mechanisms of Albendazole from floating tablet were evaluated by the n value of Krosmeyer Peppas model.

In this study, controlled release matrix tablets containing cephelexin were prepared using HPMC15 cps and Eudragit L100 in different concentration by Direct compression method. Tablets were evaluated for physical properties, Hardness, friability, weight variation and In vitro dissolution study was carried on USP II apparetus (peddle type). The best formulations selected based on above parameters were subjected for Extend release study with use of different ratio of polymer as Eudragit and HPMC .The tablets with Eudragit were found to release drug for longer duration of time as compared to formulations containing HPMC. The drug release from the tablets was sufficiently sustained.