Ambroxol hydrochloride granules, in fact, is a kind of phlegm-transforming drug, its main function is to promote the secretion of plasma substances by the tracheal mucosa, which can help dilute the phlegm, and the phlegm will become thinner and easier to cough up from a sticky state. In addition, Ambroxol hydrochloride can also promote the ciliary movement of the bronchial mucosa, which can help to expel phlegm, and is more effective when the phlegm is more abundant. Therefore, it is mainly used to treat upper respiratory tract infections, lower respiratory tract infections, including acute attacks of chronic bronchitis, acute bronchitis and cough and sputum caused by pneumonia, and it is especially effective for the phenomenon of sputum. However, Ambroxol Hydrochloride Granules are generally not used alone, and need to be used together with anti-inflammatory drugs, which are often more effective. If the infection is bacterial, it should be combined with antibiotics; if the infection is viral, it should be combined with antiviral drugs.