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根据流体动力学平衡系统原理，将复方罗布麻片改剂型为胃漂浮型控释片，从而延长药物在胃内的滞留时间，提高药物在胃肠道的吸收。并对其定性和定量等质控方法进行了探讨。
According to the principle of fluid dynamic equilibrium system, the compound apocynum tablet is modified into a gastric floating type controlled-release tablet, so as to prolong the residence time of the drug in the stomach and improve the absorption of the drug in the gastrointestinal tract. And qualitative and quantitative quality control methods were discussed.