中医处方末尾常有“另加生姜三片引”的字样。这里的生姜就是作为“药引”的。古代“药引”主要是起到“引药归经”的作用。后世有所发展,使“药引”的作用渐渐丰富。归纳起来,有下列几点:(1)增加处方的药理作用:如辛温解表方中加“生姜”是增加其解表作用;清暑剂中加鲜荷叶是 At the end of a prescription for traditional Chinese medicine, there is often the phrase “Additional Ginger Three Tablets”. The ginger here is as a “pharmaceutical lead.” Ancient “medicine cited” is mainly to play the role of “primary medicine”. The development of the later generations has gradually enriched the role of “medicine cited.” To sum up, there are the following points: (1) Increase the pharmacological effects of prescriptions: If “Ginger” is added to Xin Wen Jie Bu Fang, it is to increase its detoxification effect;