祛痰药(旧时中医称为“化痰药”)能稀释痰液,或溶解黏液使之液化而易于咳出。祛痰既有助于清除痰液,也能间接起到止咳平喘之作用,还有利于控制呼吸道感染。所以,在治疗各种呼吸道疾患时,祛痰占有特别重要的地位。两类祛痰药,作用各不同祛痰药分为两大类:恶心性祛痰药和黏痰溶解 Expectorants (old Chinese medicine known as “phlegm medicine”) can dilute the sputum, or liquefied mucus and easy to cough. Expectorant sputum both helps clear, but also indirectly play a role in cough and asthma, but also help control respiratory infections. Therefore, in the treatment of various respiratory diseases, expectorant occupy a particularly important position. Two types of expectorants, the role of different expectorants are divided into two categories: nausea and phlegm expectorant drugs dissolved