中药汤剂传统都是直火加热煎取。如医师为某病人开柴胡10g,表明医师认为10g 柴胡在直火加热煎煮时煎出的有效成分已足以达到治疗要求,煎出的其它成分又不足以产生严重的不良反应。近年来不少人致力于汤剂煎法的改革,着眼点都是设法提高药材总成分的煎出量,取得了一些成果。现在已采用的有砂 Traditional Chinese medicine decoctions are traditionally heated by direct fire. For example, a physician who prescribed 10kg of Bupleurum to a certain patient shows that the physician believes that the active ingredient of 10g of Bupleurum decoction that has been decocted by direct fire heating is sufficient to meet the therapeutic requirements. The other components that are decocted are not enough to cause serious adverse reactions. In recent years, many people have been devoting themselves to the reform of decoction method. The focus has been on trying to increase the amount of decocted medicinal ingredients and achieved some results. Sand has been used now