Evaluation on in vitro release of gastric floating sustained-release preparation of Tripterygium wilf ordii by HPLC fingerprints Preparation of gastric floating sustained-release capsules of Tripterygium wilfordii by using multiparticulate time-controlled release technology Preparation of gastric floating sustained-release capsules of Tripterygium wilfordii by using multiparticulate time-controlled release technology Study on prescription screening and preparation process of compound Danshen pulse capsule Preparation technology of Haimeng Zhisuan sustained release tablets Releasing properties and mechanism in vitro of berberine,palmatine,evodiamine,and rutaecarpine from gastric floating sustained-release tablet containning Zuojin Pellet extraction Study on preparation of phenols gastric floating tablet Preparation of gastric floating sustained-release tablets of Triperygium wilfordii and its quality evaluation Preparation of gentian total glycosides intragastric floating pellets and their characteristics of in vitro release Preparation of gentian total glycosides intragastric floating pellets and their characteristics of in vitro release