This Hair is bright to be related to comprising western Lip river Ta Zuo With Eudragit S100 and/or Eudragit L100 Gu Body Fen San Body, and characteristic is kept in the road what Kou Fu Give Drug Hou Cilostazol Wei Intestinal in amorphous state Yi Duan Time Inter.本發明涉及包含西洛他唑與甲基丙烯酸共聚物S和/或甲基丙烯酸共聚物L的固體分散體,其特徵在於在口服給藥後西洛他唑在胃腸道中保持呈非晶態一段時間。