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• W2111914198 abstract "The objective of the study was to formulate and evaluate sustained release polymeric tablets of ketoprofen for the release rate, release patterns and the mechanism involved in the release process of the drug. Formulations with three different types of newly synthesized polymers and one grade of ethyl cellulose ether derivatives (FP100 premium) in several drug-to-polymer ratios (D:P ratio 10:1, 10:2 and 10:3) were compressed into tablets using the direct compression method. They were examined for their physical properties and appearance. Tablets dimensional tests (thickness, diameter) and Q.C tests (hardness, friability, disintegration) were performed according to the USP methods. For in vitro drug release studies of Ketoprofen controlled release (CR) tablets, the USP Method-1 (Rotating Basket Method) was used with Pharma test dissolution apparatus (D-63512 Hainburg, Germany). The medium used for dissolution was phosphate buffer having a pH of 7.4 kept at constant temperature of 37±1°C. In order to analyze the drug release kinetics from each of the prepared matrices, five different mathematical models were applied to the release data including zero order kinetics, first order kinetics, Higuchi kinetics, Hixson Crowell kinetics and Korsmeyer Peppas equations were applied to the release data. The results obtained from different parameters showed that polymers: Polyglycolide, PGA-co-caprolactone, PGA-co-pentadecalactone and Ethocel FP100 premium can be used successfully in order to develop directly compressed prolonged release tablets of slightly soluble drugs such as ketoprofen. Particle size of polymer is a determining factor in controlling the release of ketoprofen from tablets. Ethocel standard FP100 polymers extend the release rates of drug more efficiently than the conventional granular form of the other three polymers. Further, the three new polymers and Ethocel FP100 could efficiently extend the release of the drugs as compared to the reference conventional formulation. Key words:    Polymers, Ketoprofen, controlled-release preparations." @default.
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• W2111914198 date "2012-03-08" @default.
• W2111914198 modified "2023-09-24" @default.
• W2111914198 title "Release pattern of three new polymers in Ketoprofen controlled-release tablets" @default.
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• W2111914198 doi "https://doi.org/10.5897/ajpp11.604" @default.
• W2111914198 hasPublicationYear "2012" @default.
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