有些硬质中药材在切制成饮片前,需经先浸后润的处理,如槟榔、山棱、莪术、白芍等。药材在水中长期浸泡,能使水溶解的成分大量流失,如大黄所含蒽醌类成分具泻下作用,水浸泡后,泻下作用明显减弱;同时这些药物在水浸期间常有发粘、发臭变色等现象发生而影响疗效。我们在实践中摸索出用湿砂润药的新方法,现介绍如下: Some hard Chinese herbal medicines need to be firstly soaked and moistened before they are cut into pieces, such as betel nut, Chinese wolfberry, curcuma, and white peony. Long-term soaking of herbs in water can cause a large loss of water-soluble components. For example, if the ingredients contained in rhubarb have a diarrhea effect, the effect of diarrhea will be significantly reduced after water soaking; at the same time, these medicines are often sticky during flooding. Symptoms such as stinky discoloration affect the efficacy. We have explored new methods for using wet sand to pharmacy in practice. We now introduce the following: