Evaluation on preparation process of brevisapin colon-specific tables and its in vitro release Preparation of baicalin colon-specific solid dispersion and evaluation on its in vitro release Preparation and releasing evaluation in vivo and in vitro of pH-dependent Yuchangning Tablet for colon-specific delivery Pharmacokinetics and pharmacodynamics of Tongshuan Jiuxin pH-Dependent Delayed-release Capsula in dogs in vivo Studies on release of pH-dependent gradient-releasing heart-protecting musk pellets in vitro Studies on pharmacokinetics of Musk Protecting Heart Pellets with pH-dependent gradient-release and Musk Protecting Heart Pills