作者: M. Maniruzzaman , M. M. Rana , J. S. Boateng , J. C. Mitchell , D. Douroumis
DOI: 10.3109/03639045.2012.670642
关键词:
摘要: The aim of this study was to investigate the efficiency hydrophilic polymers enhance dissolution rate poorly water-soluble active pharmaceutical ingredients (APIs) processed by hot-melt extrusion (HME). Indomethacin (INM) and famotidine (FMT) were selected as model substances while polyvinyl caprolactam graft copolymer, soluplus (SOL) vinylpyrrolidone-vinyl acetate copolymer grades, Kollidon VA64 (VA64) Plasdone S630 (S630) used polymeric carriers. For purpose study, drug–polymer binary blends at various ratios a Randcastle single screw extruder. physicochemical properties morphology extrudates evaluated through X-ray diffraction (XRD), differential scanning calorimetry (DSC) electron microscopy (SEM). Increased drug loadings up 40% achieved in extruded formulations for both drugs. INM FMT exhibited strong plasticization effects with increasing concentrations found be molecularly dispersed within polymer blends. vitro studies showed increased INM/FMT release rates all compared that pure APIs alone.