The purpose of this study was to manufacture liquisolid compact of high dose poorly water-insoluble drug, Carbamazepine (CBZ) by using novel superdisintegrant for the purpose of fast disintegration and improved its dissolution rate. The solubility of CBZ was analyzed in various non-volatile solvents in order to find the vehicle with the maximum solubility. The dissolving profile of liquisolid compacts was compared to a marketed tablet formulation's dissolution profile. CBZ was found to be much more soluble in polyethylene glycol 200 than in the other solvents. Crosspovidone-containing formulations showed no disintegration, but all other formulations disintegrated after 91.2 seconds. A Starch Glutamate-Croscarmellose Sodium combination has a disintegration time of 42.5 seconds. The optimized batch NSC1 including Starch Glutamate-Croscarmellose Sodium had 94.81 % greater drug release compared to the marketed formulation. This investigation found that the novel superdisintegrant had the fastest disintegration and the highest drug release compared to other disintegrants.

A simple, exceptionally cost-effective, extremely accurate, quite precise and highly reproducible analytical method was developed and validated for simultaneous estimation of Diacerein and Aceclofenac in bulk and Pharmaceutical formulation. The new Ultra Performance Liquid Chromatography technique was developed. Method- The separation has been done on column ACQUITY UPLC BEH Shield C18 (50 x 2.1mm), 1.7µm (40°C temperature). The mobile phase contained Buffer and Acetonitrile (Buffer: ACN) (55:45 V/V).. The flow rate was set at 0.4ml/min, and detected at 268nm with PDA detector. Mobile phase was sonicated for 15 min. before use. 5μl of samples of standard stock solution and tablet solution were injected. Different trials were performed to separate diacerein and aceclofenac. The total run time of the detection was 4 min. The developed method was validated against different validation parameters. Results - The retention times were obtained at 1.762min. and 2.891 min. for Diacerein and Aceclofenac respectively. Accuracy study was observed in the range of 100.33% to 101.67% with less than 2% RSD. LOQ was found to be 2.98μg/ml and 5.9041μg/ml. similarly LOD was found to be 0.9841μg/ml and 1.9467μg/ml. for Diacerein and Aceclofenac respectively. Precision %RSD for intraday and interday were found to be 0.19 and 0.18 for Diacerein , 0.44 and 0.16 for Aceclofenac respectively. Linearity was found in the range of 2.5-17.5μg/ml and 5-35μg/ml for Diacerein and Aceclofenac respectively. The method was found robust by deliberate changes in the flow rate, ratio of mobile phase and detection wavelength. Conclusion-The method was found to be satisfactory and can be used successfully for determination of Diacerein and Aceclofenac simultaneously in bulk and pharmaceutical dosage form.

The ‘in situ gel’ system has appeared as one of the most effective drug delivery systems. Its specific distinguishing feature of 'Sol to Gel' transition aids in the continuous and controlled release of medicines. These systems have a number of advantages, including simple production, convenience of use, enhanced adherence, and patient comfort by lowering drug delivery frequency due to their distinctive sol to gel transition characteristics. An in-situ gelling system is a formulation that is in solution form before penetrating the body but transforms to gel form under specified physiological conditions. This review mainly focused on introduction, Advantages and Disadvantages of in situ gel, mechanism, types of Polymers used, Evaluation of in situ gel and its applications.

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