Ambroxol can assist in the treatment of cough, but it is not a cough suppressant, it is a mucolytic agent, and like carboxymetholestane tablets and acetylcysteine granules, it has the effect of thinning phlegm and promoting phlegm expulsion. It is useful for patients who cough and cough up phlegm, especially those whose phlegm is sticky and difficult to cough up. And Ambroxol can enhance the effect of antibiotics and can strengthen the anti-inflammatory effect. Therefore, for patients with bronchopneumonia, chronic bronchitis, emphysema, Ambroxol is a very commonly used drug, in addition to oral Ambroxol, but also can be combined with antibiotics, bronchodilators and other drugs.