Preparation and properties of sustained-release pellets of active components from Ligusticun chuanxiong Preparation and properties of sustained-release pellets of glycyrrhizin effective components Preparation and prescription of enteric coated pellets of panax notoginseng saponins pellets Preparation of total glucosides in paeony sustained-release pellets by fluidized bed coating method Preparation of baicalin colon-specific solid dispersion and evaluation on its in vitro release Evaluation on preparation process of baicalin-Eudragit L100-55 enteric coated solid dispersion and its in vitro release