龙齿、龙骨、石燕、石蟹古今中医临床大部分用制品入药,也有用生品的,如石燕、石蟹用生品研末内服或外治疗湿热肿毒,退翳明目。目前用制品治疗类似的疾病,龙齿、龙骨主要用于镇惊安神,前者偏于除湿热,后者有固精、涩肠、生肌收敛之功效。通过对四种动物化石药炮制前后微量元素 Dragon’s teeth, keel bones, stone swallows, stone crabs Most of the ancient and modern Chinese medicine are used as medicine, but also useful raw materials, such as Shi Yan, stone crabs with raw products into powder or external treatment of damp heat swollen poisonous, retiring eyesight. Currently used products to treat similar diseases, dragon teeth, keels are mainly used to calm the nerves, the former partial dehumidification heat, the latter has the effect of solid, astringent intestines, myogenic convergence. Through the preparation of four kinds of animal fossil drugs before and after the trace elements