Ambroxol Hydrochloride Tablets is an expectorant, which is a phlegm dissolver, able to reduce the viscosity of sputum, promote the secretion of lung surface active substances, increase the movement of bronchial cilia, so that sputum can be easily coughed up. In clinical practice, this drug is mainly applied to patients with thick and sticky sputum caused by various reasons, and it is not easy to cough out. Generally this drug we are recommended to take after meals, adverse reactions are also relatively rare, occasionally visible rash, nausea, stomach upset, lack of appetite, as well as stomach pain, diarrhea. It is important to note that this drug should be avoided in conjunction with central cough suppressants, such as dextromethorphan, so as not to obstruct the airway due to diluted phlegm. In terms of drug interactions, this drug is generally less likely to interact with other drugs. When it is used in combination with some antibiotics, such as amoxicillin and cefuroxime, it can lead to an increase in the concentration of antibiotics in the lung tissue, which is favorable for the antibiotics to exert their efficacy. Other interactions are what we just mentioned, try to avoid taking it at the same time with central cough suppressants. In conclusion, Ambroxol Hydrochloride Tablets are still relatively safe, it is an expectorant, the main effect is to reduce the viscosity of phlegm, promote the coughing out of phlegm.