天门冬,处方名多用天冬,别名大当门根,为百合科植物天门冬的根。生于山野,亦栽培于庭园,分布我国中部、西北、长江流域及南方各地。性寒,味甘、苦,功能养阴生津,润肺清心。用于肺燥干咳,虚劳咳嗽,津伤口渴,心烦失眠,内热消渴,肠燥便秘,白喉。药理研究表明,天冬可保护心肌、肝脏 Asparagus, the prescription name uses asparagus more frequently, the alias is when the root is the root of Lilyaceae asparagus. Born in the mountains, it is also cultivated in gardens and distributed throughout central China, the northwest, the Yangtze River basin, and the South. Cold, sweet, bitter, functional Yang Yin Sheng Jin, lungs and pure heart. For dryness, dry cough, consumptive cough, Tianjin thirst, upset insomnia, heat Diabetes, intestinal dry constipation, diphtheria. Pharmacological studies show that Asparagus protects the heart and liver