一、制法和用法“紫雪丹”一物,由来已久;溯其源流,可能导始于两晋南北朝之炼丹术.我们现在所通用的紫雪丹,主要根据宋代《太平惠民和剂局方》中的方药和方法制备而成,在温热病方面,应用较广.其组成和制法如下: First, the system of law and usage “Xi Xuedan,” a thing, has a long history; back to its origins, may lead to the alchemy of the Southern and Northern Dynasties. We are now commonly used in the Zixue Dan, mainly based on the Song Dynasty "Taiping Huimin agent The recipes and methods of the prescriptions are prepared and used widely in the field of thermal diseases. The composition and preparation methods are as follows: