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• W4382361796 endingPage "101690" @default.
• W4382361796 startingPage "101690" @default.
• W4382361796 abstract "Lisinopril (LIS) it is antihypertensive drug, classified as a class III drug with a high water solubility and low permeability. To overcome the low permeability, 32 factorial designs aimed to formulate LIS as a sustained-release (LIS-SR) matrix pellet by extrusion/spheronization. Matrix pellets were composed of wet mass containing Avicel® and polymeric matrix polymers (sodium alginate (SA) and chitosan (CS)). Evaluation the effect of two independent variables, matrix-forming units (SA and CS) on mean line torque, on pellet size, dissolution rate after 6 h, and mucoadhesion strength of the pellets were assessed using Statgraphics software. The tested formulations (F1-F9) showed that mean line torque ranged from 1.583 – 0.461 Nm, with LIS content in the LIS-SR pellets ranged from 87.9-103%, sizes varied from 1906-1404 µm and high percentages of drug released from pellets formulations (68.48 to 74.18 %), while the mean zeta potential value of mucoadhesive range from -17.5 to -22.9 mV. The selection of optimized formula must have the following desirability: maximum peak torque, maximum pellets’ particle size, and minimum % LIS release after 6hr. LIS optimized sustained release pellet formula composed of 2,159 % SA and 0.357 % CS was chosen as optimized formula. It’s showed a 1.055 Nm mean line torque was responsible for the increased pellet size to 1830.8 μm with decreased release rate 56.2 % after 6 hr, and -20.33 mV average mucin zeta potential. Ex-vivo mucoadhesion studies revealed that that the optimize formula, exhibited excellent mucoadhesive properties, after 1 h, about 73% of the pellets were still attached to the mucus membrane. Additionally, ex-vivo permeation determination of LIS from the optimized LIS-SR formulation was found to be significantly higher (1.7-folds) as compared to free LIS. In conclusion: LIS-SR matrix pellets, prepared with an extrusion/spheronization have desirable excellent characteristics in-vitro and ex-vivo sustained-release pellet formulation of LIS-SR was able to sustain the release of LIS for up to 8 h." @default.
• W4382361796 created "2023-06-29" @default.
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• W4382361796 date "2023-08-01" @default.
• W4382361796 modified "2023-10-01" @default.
• W4382361796 title "Optimization and evaluation of Lisinopril mucoadhesive sustained release matrix pellets: In-vitro and ex-vivo studies" @default.
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• W4382361796 doi "https://doi.org/10.1016/j.jsps.2023.06.023" @default.
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