When patients with acute bronchitis have thick sputum that is difficult to expel, they can take Ambroxol Hydrochloride orally even if they do not have coughing symptoms. 1. Ambroxol hydrochloride preparation is an expectorant, which is generally used to treat diseases with abnormal sputum secretion and difficulty in expelling sputum, such as acute exacerbation of chronic bronchitis, bronchodilatation, wheezing bronchitis, bronchial asthma and so on. 2. Nausea, vomiting, skin rash, erythema, dry mouth, dyspnea and other adverse reactions may occur when using Ambroxol Hydrochloride preparations, which need to be stopped in time to seek medical treatment, the specific use of the drug needs to be used under the guidance of a doctor. 3. For the components of this product is prohibited for those who are allergic to, for pregnant women, lactating women, renal insufficiency should be used with caution, children need to consult a professional doctor for medication.