生川乌有大毒,《湖南省中药材炮制规范》的炮制方法是,“拣去杂质,大小分开,浸泡,冬春3～4天,夏秋2～3天,每天换水1～2次,捞出,另取生姜、皂角、甘草捣碎与川乌共倾入锅中加热煮沸(约2小时),至透心为度,取出,除去辅料,晾至 The raw material of Chuanwu is poisonous. The processing method for the “Guangxi Province’s Regulations for the Processing of Chinese Herbal Medicines” is: "Separate the impurities, divide the size, soak, 3 to 4 days in winter and spring, 2 to 3 days in summer and autumn, and change the water 1 to 2 times a day. Remove, ginger, saponin, licorice chopped and ginger, and pour into the pan, heat and boil (approx. 2 hours), take it to the heart, remove it, remove the accessories, and dry