柴胡,为伞形科多年生草本植物狭叶柴胡的根,处方名为北柴胡,以别于石竹科植物的银柴胡。前者入药时代较早而用途较广;后者入药时代较晚而功效着重于清解虚热。本文所谈,只限于北柴胡。柴胡自汉代张仲景《伤寒论》以降,为历代医家所常用。《神农本草经》列为上品,称其味苦性平,主治心腹肠胃中结气,饮食积聚,寒热邪气,推陈致新。《本草纲目》称其能平肝、胆、三焦、包络相火,及治头 Bupleurum chinense, a perennial herb of the Umbelliferae family, is the root of Bupleurum chinense, and its prescription is named North Bupleurum, which is different from the silver Bupleurum chinense plant. The former was used early in medicine and was widely used; the latter was late in medicine and its efficacy focused on clearing the heat. This article is only limited to North Bupleurum. Since the Han Dynasty Zhang Zhongjing’s “Treatise on Febrile Diseases,” Chai Hu has been descended and used by physicians of all ages. “Shen Nong Ben Cao Jing” is listed as a top grade, saying that its bitterness and bitterness indicate the qi in the gastrointestinal tract, diet accumulates, cold and heat evil, and promotes Chen Zhixin. The “Compendium of Materia Medica,” said that it can Ping liver, gallbladder, triple burner, enveloped phase fire, and governance head