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- W2079236432 abstract "Solid dispersion of a slightly water soluble drug, omeprazole (OME), was prepared using different concentrations of Kollicoat IR by a spray drying technique. The physicochemical properties of the drug alone and its microparticles were investigated using differential scanning calorimetry (DSC) and powder X-ray diffractometry (PXRD). The analyses showed that omeprazole transformed from the crystalline state to the amorphous state as confirmed by the disappearance of its melting peak and the characteristic of the crystalline peaks. Solid dispersion of the drug with this hydrophilic polymer was used in suppository formulations to investigate their role in enhancement drug release. The bases used in this study include hydrophilic base, polyethylene glycol (PEG), and lipophilic bases such as Suppocire AM and Witepsol H15. The release of omeprazole from a hydrophilic base was higher than that of a lipohilic base. Also, the release of drug from Supocire AM was superior to Witepsol H15. Incorporation of solid dispersion of drug using Kollicoat IR prepared by spray drying technique increases the release of OME from its suppository bases. The Kinetic study of the release of drug and its solid dispersion was carried out and the results indicated that the release of drug from different suppository bases is diffusion model." @default.
- W2079236432 created "2016-06-24" @default.
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- W2079236432 date "2010-01-01" @default.
- W2079236432 modified "2023-09-23" @default.
- W2079236432 title "Improvement of the in vitro release of omeprazole from suppository bases using Kollicoat IR" @default.
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- W2079236432 doi "https://doi.org/10.1016/s1773-2247(10)50064-9" @default.
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