作为能够直接用于人体的残余结石直接溶解药须具备以下两个条件:(1)对胆石有溶解作用;(2)对机体的有害作用极小。作为直接溶石药的种类有乙醚,十二烷磷酸钠,胆酸钠,肝素,六甲基磷酸钠,左旋柠檬精,二乙胺四乙酸钠,祛脂乙酯等。但其中有的溶石能力弱(肝素,六甲基磷酸钠),有的对机体可能有损害(乙醚,左旋柠檬精,三乙胺四乙酸钠,胆酸钠)。最近由Mayo医院引进的Capmul 8210(Monooctanoin)是一种比较理想的溶石药,经治55例,其中33例有效,其副作用是有时出现腹泻,但未发现对肝脏的损害。作者治愈的病例如下: As a direct dissolution of residual stones can be directly used for the human body must have the following two conditions: (1) has a dissolving effect on the gallstone; (2) the harmful effects of the body is minimal. As a direct type of lysolithium are ether, sodium dodecyl phosphate, sodium cholate, heparin, sodium hexamethylphosphate, levulisin, diethylamine tetraacetate, lipid-removing ethyl ester. However, some of them have weak ability of dissolving blood stone (heparin, sodium hexametaphosphate), and some may damage the body (ether, levamisole, triethylamine tetraacetate and sodium cholate). Recently introduced by Mayo Hospital Capmul 8210 (Monooctanoin) is an ideal solution to the treatment of 55 cases, of which 33 cases of effective, the side effects are sometimes diarrhea, but found no damage to the liver. The authors cure the following cases: