甘草是一味从古至今广为药用的中药 ,其功能可和中缓急、润肺、解毒、调和诸药等 ,其制剂 (如复方甘草合剂 )是已有 60多年历史的传统止咳祛痰药物 ,面对多年来众多同类新药 ,无论是中药还是西药 ,它仍然处于无可置疑的首选地位。现代医学研究证明 ,甘草的有效成分之一是甘草酸 Licorice is a traditional Chinese medicine that has been widely used since the ancient times. Its function can be used to relieve urgency, lungs, detoxify, and reconcile various drugs. Its preparations (such as compound licorice mixture) are traditional cough expectorants with a history of more than 60 years. In the face of many similar new drugs over the years, whether it is Chinese medicine or Western medicine, it is still in an unquestionable preferred position. Modern medical research shows that one of the active ingredients of licorice is glycyrrhizic acid