沙参,有南北之分,临床常用的是北沙参。北沙参为伞形科植物珊瑚菜的根,味甘,性微寒,入肺、胃经,有养阴润肺,益胃生津之功效。常用于治疗肺胃阴虚所致的干咳少痰、咽喉干燥、痰中带血、口干、便秘等症。明代著名药物学家李时珍评价沙参有“清肺热治久咳”的功效。教师、歌唱演员因 Radix, North and South points, clinical commonly used is North Radix. Beishan as Umbelliferae plant coral root, sweet, slightly cold, into the lungs, stomach, Yin and lungs, stomach benefits of the effect of stomach. Commonly used in the treatment of lung and lung caused by dry cough and less phlegm, throat dry, bloody sputum, dry mouth, constipation embolism. Li Shizhen, a famous pharmacologist in the Ming Dynasty, evaluated the efficacy of Radix Codonopsis “Qingrejiedu Cough”. Teachers, singers