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Research Paper Open Access
In the present investigation, a novel multifunctional co-processed superdisintegrants consisting of crospovidone and Kyron T-314 were fabricated by solvent evaporation method to develop melt-in-mouth tablets of metoclopramide hydrochloride with a view to enhance patient compliance by direct compression method. The simple physical blends and co-processed mixture of superdisintegrants were characterized for angle of repose, bulk density, tapped density, Carr's index, Hausner's ratio and compatibility studies by FTIR spectroscopy. Melt-in-mouth tablets of metoclopramide hydrochloride were prepared using the physical blends and co-processed mixture of superdisinterants and were evaluated for hardness, friability, in vitro disintegration time, in vitro dispersion time, wetting time, water absorption ratio, drug content, in vitro drug release and accelerated stability study at 40±2° temperature and 75±5% relative humidity. Among the tablets evaluated, formulation F-X prepared by adding co-processed superdisintegrants in ratio of 1:1 showed minimum in vitro dispersion time of 9.71±0.021 s, in vitro disintegration time of 5.70±0.117 s and higher amount of drug release of 99.695±0.29% at the end of 1 min. Formulation F-X was emerged as the overall best formulation based on drug release characteristics in pH 6.8 phosphate buffer compared with the tablets obtained from conventional method of manufacture as well as with marketed preparation. Analysis of drug release data indicated that formulation F-X followed first order kinetics. This study revealed that the co-processed mixture of superdisintegrants have excellent flow properties, high compressibility, render low disintegration time to tablets and have better binding properties as compared to physical blends of superdisintegrants. These materials can be a good substitute for inert superdisintegrants, which are normally used in tablet manufacturing.
Direct compression, co-processed superdisintegrants, solvent-evaporation, crospovidone, Kyron T-314, metoclopramide hydrochloride, wetting time