Journal
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
Volume 57, Issue 1-4, Pages 89-94Publisher
SPRINGER
DOI: 10.1007/s10847-006-9216-9
Keywords
betacyclodextrins; nanosponges; itraconazole
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Nanosponges are betacyclodextrins crosslinked with carbonate bonds. The polymer formed is nanoparticulate in nature. Itraconazole is a BCS Class II drug that has a dissolution rate limited poor bioavailability. Rationale of the work was to enhance the solubility of Itraconazole so that the bioavailability problems are solved. Solid dispersion technique has been used for drug incorporation. The effect of a ternary component copolyvidonum on solubility of itraconazole has been studied. Phase solubility studies has been carried out with a rationale of comparing the solubilization efficiency of nanosponges, copolyvidonum and combination. The dispersions were characterized by differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD) and photon correlation spectroscopy (PCS). It was found that the solubility of itraconazole was enhanced more than 50-folds with a ternary solid dispersion system. Using copolyvidonum in conjunction with nanosponges helps to increase the solubilization efficiency of nanosponges as evident from the phase solubility studies.
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