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- W4285369439 abstract "- Valsartan orodispersible tablets have been developed at 40-mg dose, with the intention of facilitating administration to patients experiencing problems with swallowing and hopefully, improving its poor oral bioavailability. Work started with selecting drug compatible excipients depending on differential scanning calorimetric analysis. A 33 full factorial design was adopted for the optimization of the tablets prepared by freeze-drying technique. The effects of the filler type, the binder type, and the binder concentration were studied. The different tablet formulas were characterized for their physical properties, weight variation, disintegration time, surface properties, wetting properties, and in vitro dissolution. Amongst the prepared 27 tablet formulas, formula number 6 (consisting of 4:6 valsartan:mannitol and 2% pectin) was selected to be tested in vivo. Oral bioavailability of two 40 mg valsartan orodispersible tablets was compared to the conventional commercial tablets after administration of a single dose to four healthy volunteers. Valsartan was monitored in plasma by high-performance liquid chromatography. The apparent rate of absorption of valsartan from the prepared tablets (Cmax = 2.879 μg/ml, tmax = 1.08 h) was significantly higher than that of the conventional tablets (Cmax = 1.471 μg/ml, tmax = 2.17 h), P ≤ 0.05. The relative bioavailability calculated as the ratio of mean total area under the plasma concentration–time curve for the orodispersible tablets relative to the conventional ones was 135%. The results of the in vivo study revealed that valsartan orodispersible tablets would be advantageous with regards to improved patient compliance, rapid onset of action, and increase in bioavailability." @default.
- W4285369439 created "2022-07-14" @default.
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- W4285369439 date "2021-09-01" @default.
- W4285369439 modified "2023-09-26" @default.
- W4285369439 title "FAST DISSOLVING ORAL DISINTEGRATING FILMS OF VALSARTAN" @default.
- W4285369439 doi "https://doi.org/10.33564/ijeast.2021.v06i05.054" @default.
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