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Utilization of Diluted Compendial Media as Dissolution Test Solutions with Low Buffer Capacity for the Investigation of Dissolution Rate of Highly Soluble Immediate Release Drug Products

机译:利用稀释的型介质作为溶出试验溶液,具有低缓冲能力,用于调查高度可溶性立即释放药物产品的溶出速率

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Research from the past decade has shown that the buffer capacities of intestinal fluids are much lower than those in the media used for dissolution test of many solid formulations. The purpose of this study was to elucidate the effect of buffer capacity on the dissolution profiles of highly soluble drug products, using metoclopramide (a biopharmaceutics classification system [BCS] class III drug) tablets as a model. The dissolution profiles of three metoclopramide products were obtained in Japanese pharmacopeia dissolution medium (pH 1.2 and 6.8), diluted medium with low buffer capacity comparable to that of gastrointestinal fluid, and other biorelevant media. One product showed slower dissolution in the medium with lower buffer capacity (bio-relevant, diluted compendial solution), but substantially similar dissolution in the compendial test solutions. Disintegration difference was implied to be involved in the different dissolution profiles depending on the medium buffer capacity. This study indicated the importance of media buffer capacity as a factor inducing different dissolution between products of highly soluble active pharmaceutical ingredients. The diluted compendial media would be a useful alternative to biorelevant media for the detection of the different formulation performances depending on the buffer capacities.
机译:从过去十年开始的研究表明,肠道流体的缓冲能力远低于用于许多固体制剂的溶出试验的介质中的缓冲能力。本研究的目的是阐明使用甲氧氯丙普胺(生物氯普替普胺(生物制冷分类系统[BCS] III类药物)片剂作为模型的高可溶性药物产品对高度可溶性药品溶解谱的影响。在日本药典溶解培养基(pH 1.2和6.8)中获得三种甲基丙普胺产物的溶出型材,稀释培养基,低缓冲能力,与胃肠流体的低缓冲能力,以及其他生物拉链介质。一种产品在培养基中显示出较低的缓冲容量(生物相关,稀释的项溶液),但在竞选试验溶液中的溶解基本相似的溶解。暗示崩解差异涉及不同的溶解曲线,这取决于中等缓冲容量。该研究表明媒体缓冲能力的重要性是诱导高度可溶性活性药物成分的产物不同溶解的因素。稀释的项介质是对Biorelevant介质的有用替代物,用于根据缓冲容量检测不同配方性能的介质。

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