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Gastro retention using polymer cocoons

机译:使用聚合物茧保留胃液

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摘要

A gastro-retentive capsule has been prepared which is retained in the stomach for a period of 24h, providing a vehicle for the controlled delivery to the upper intestines. These “gastro cocoons” can resist passage through the sphincter of the stomach, and can retain a high drug payload (30%). They are made from oppositely charged polyelectrolytes and can swell to twice their initial volume. They are strong and also can resist 550 N of compressive force. They are based on filled pharmaceutical capsules which are visible to X-rays. Using ambroxol hydrochloride as a model drug linear, zero-order, release curves were obtained.
机译:制备了一种胃-留胶囊,该胃capsule留胶囊在胃中保留了24小时,为控制输送到上肠提供了载体。这些“胃茧”可以抵抗通过胃括约肌的通过,并可以保留较高的药物有效载荷(30%)。它们由带相反电荷的聚电解质制成,可溶胀至其初始体积的两倍。它们很坚固,还可以抵抗550 N的压力。它们基于X射线可见的填充药物胶囊。使用盐酸氨溴索作为模型药物,可得出线性,零级释放曲线。

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