何首乌系宋代开宝本草首次收载的生药。该生药以蓼科植物Polygoum multiflorum为基源,收载于1989年公布的《日本药局方外生药规格》中。其评价法有何首乌中的羟基蒽醌类的大黄素(emodin)(1)为指标的确认试验法。有人使用本法为标准,进行了市场品何首乌的确认试验,但不适用的较多。其组织形态与是否含有羟基蒽醌类 Polygonum multiflorum was the first crude drug contained in Kaibo Herbal Medicine of the Song Dynasty. The crude drug is based on the Polygoum multiflorum of the family Polygonaceae, and was published in the “Specification of External Pharmaceutical Agents of the Japanese Pharmacopoeia” published in 1989. The evaluation method is based on the confirmation test of emodin (1), which is a hydroxysteroid in the root of Polygonum multiflorum. Some people have used this law as a standard to carry out confirmation tests on the market products of Radix Polygonum multiflorum, but they are not applicable. Its organizational form and whether it contains hydroxysteroids