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煎药容器应以砂锅或塘瓷皿为宜,洁净冷水浸没药物,略高于药面2～3公分,浸泡20～30分钟,以利有效成分溶出。煎煮时间,要根据药物的性质而定,一般药物武火煮沸后文火慢煎,以防熬干或药液外溢,保持15分钟左右。若含芳香挥发油或解表药如紫苏、荆芥、薄荷等不宜久煎,煮沸后保持3～5分钟即可;滋补药应适当延长煎煮时间。每剂中药一般煎煮二次至三次,使药物煎透,增强药效。煎煮中几种特殊处理的药物: 先煎:对一些矿石、贝壳类质地坚硬而难于煎煮的药物,如生石膏、生牡蛎、龙骨、龙齿、磁石、石决明等。宜先煎15～30分钟。
Decocting containers should be casserole or pond porcelain dish is appropriate, clean cold water immersion drugs, slightly higher than the drug surface 2 to 3 cm, soak for 20 to 30 minutes, in order to facilitate the dissolution of the active ingredient. Decocting time, according to the nature of the drug may be determined, the general drug Wuhuo slow boiling after the slow fire to prevent dry or liquid spills, to maintain about 15 minutes. If it contains aromatic essential oils or anti-form drugs such as basil, Nepeta, mint, etc. should not be fried for a long time, after boiling to maintain 3 to 5 minutes; nourishing medicine should be appropriate to extend the boiling time. Each dose of Chinese medicine is usually decocted two or three times to make the medicine detoxified and enhance its efficacy. Decocting several special treatment of drugs: First fried: For some ores, shellfish texture hard and difficult to decoct the drug, such as raw plaster, raw oysters, keel, dragon teeth, magnets, stone cassia and so on. Should be fried for 15 to 30 minutes.