Influence of Newly Synthesized Superdisintegrant on Dissolution Rate Enhancement of Carbamazepine using Liquisolid Compact Technique

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.