有关中药的药理作用的研究,历来的做法是详细研究组成方剂的生药及其所含成分的药理作用,推断由此组成的方剂之作用。这样,虽然明确了各味生药或成分的作用,但仍难以判定该种药物在方剂中是否也发挥同样药效。所以,准确地阐述方剂的实际药理作用,困难较多。尽管如此,本法还是经常发现意外的活性成分,可借助这种方法研究来源于天然物的新药,甘草的甘草甜素即是其例。 The study on the pharmacological effects of traditional Chinese medicine has historically been a detailed study of the pharmacological effects of the constituent drugs and the constituents contained in the prescription, and inferred the effects of the constituents. In this way, although the effects of various crude drugs or ingredients are clarified, it is still difficult to determine whether the drug also exerts the same efficacy in the prescription. Therefore, it is difficult to accurately explain the actual pharmacological effects of the prescription. In spite of this, this Act often finds accidental active ingredients. This method can be used to study new drugs derived from natural products. Glycyrrhizin is the example of licorice.