Abstract
The aim of the present study was to prepare and evaluate voriconazole microemulsified hydrogel. The voriconazole microemulsified is prepared by Water Titration Method. In which voriconazole microemulsified incorporated with hydrogel, Blank gels of different polymers were prepared by distilled water. Finally, the carbopol gel was prepared by dispersing 0.5% carbopol w/v and 0.5% aloe vera powder in 100 ml of water with stirring on mechanical stir. Additionally, for preservation of formulations 0.8% methyl paraben was mixed. Oil phase was selected by dissolving the voriconazole pure in different oils, oleic acid, castor oil, coconut oil, olive oil, cooten seed mineral oil and soya oil. Oleic acid was selected on the basis of higher solubility of voriconazole in it. Combination of surfactant and co-surfactant was selected on clear visual observation. Span - 40: propylene glycol in ratio 1:1 and 2:1 selected for further preparation of microemulsion. From the study F-8, F-9, F-10, F-14 and F-15 were selected for further studies. Though F-16, F-17, F-18, F-19 and F-20 formulations are also stable, but rejected due to high concentration of surfactant can cause skin irritation, skin burning and/or other complications. Characterization of selected voriconazole microemulsion formulations were evaluated under various parameters like Droplet size, Zeta potential, Poly Dispersity Index (PDI) and (%) Drug content all results showed.
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