胃漂浮片是指口服后能保持自身密度小于胃内容物密度,而在胃液中呈漂浮状态的制剂。研究认为,大多数口服药物主要在小肠中上部(十二指肠至回肠远端)的无菌部位吸收,药物通过此处后,在结肠部位将被逐渐增多的细菌分解,在该部位只有极少量药物和代谢物被吸收。在小肠中上部释放药 Stomach floating tablets refers to oral administration can maintain its own density is less than the density of gastric contents, while in the gastric fluid was floating in the formulation. The study concluded that most oral drugs are mainly absorbed in the aseptic part of the upper intestine (distal to the duodenum to the distal ileum). After the drug has passed through it, the bacteria in the colon will be gradually increased. Only the polar Small amounts of drugs and metabolites are absorbed. In the upper part of the small intestine to release drugs