地黄又叫地髓,“髓”意指吸收地气之精髓,“黄”因其地下块根为黄白色。其根部为传统中药之一,最早出典于《神农本草经》。地黄依照炮制方法不同,在药材上可分为鲜地黄、干地黄与熟地黄,其药性和功效也有较大的差异。按照《中华本草》功效分类,鲜地黄为清热凉血药;熟地黄则为补益药,对阴虚有很好的治疗效果。 Yellow earth is also called the ground pith, “medium” means absorbing the essence of the gas, “yellow” because of its underground roots are yellow-white. Its roots are one of the traditional Chinese medicines and were first published in the “Shen Nong Ben Cao Jing.” Rehmannia can be divided into Radix Rehmanniae, Radix Rehmanniae, and Radix Rehmanniae on the basis of different processing methods. The medicinal properties and efficacy of Radix Rehmanniae are different. According to the “Chinese Herbal” effect classification, fresh yellow for the heat and cooling blood drug; Rehmannia is a tonic drug, a good treatment of yin deficiency.