摘 要：甘草是常用中藥，藥理作用廣泛。現(xiàn)代研究發(fā)現(xiàn)甘草及其提取物具有鎮(zhèn)咳、祛痰、平喘、肺保護(hù)及抗呼吸道病原體等作用，甘草酸、甘草次酸及甘草的黃酮類化合物是甘草對呼吸系統(tǒng)藥理作用的活性成分。

Abstract: Licorice is a common kind of TCM materials with wide pharmacological effects．According to modern research，licorice and its extracts can stop cough，expel phlegm，relieve asthma，protect lung and resist respiratory pathogens．Glycyrrhizic acid，glycyrrhetinic acid and flavonoids are the main pharmacologically active components on respiratory system．