蚕砂是以桑叶为食物的昆虫家蚕Ｂｏｍｂｙｘｍｏｒｉｌ幼虫的干燥粪便，其作用在《本草纲目》、《本草拾遗》等均有记载，功能是祛风除湿，活血定痛。对心气痛，半身不遂等也有疗效。在近代临床上有用于治疗胃腹痛及止血崩。本文从蚕砂中提取叶绿素并制成其锌钠盐，现介绍如下? The silkworm sand is a dry manure of the silkworm Bombyxmoril larvae of mulberry leaf as a food, and its function is described in “Compendium of Materia Medica” and “Herbal Supplement”, and the function is dehumidification by hurricanes and blood circulation. Heartache, hemiplegia, etc. are also effective. In modern times, it is used to treat stomach abdominal pain and bleeding. This article extracts chlorophyll from silkworm sand and makes zinc sodium salt.