Mucosolvan is the trade name of Ambroxol, and Ambroxol Injection is a dosage form of Ambroxol, both are the same kind of medicine, there is no which one is better for phlegm. 1. Ambroxol dosage has oral solution, dispersible tablets, granules, injection, belongs to the cough expectorant drugs, this product has the ability to dissolve secretions, promote mucus discharge, reduce mucus retention, promote the secretion of lung surface active substances and play a protective function. It can be used in the treatment of respiratory diseases with abnormal sputum secretion and poor expectoration function. 2. The adverse reactions of this product include dry mouth, salivation, nausea, vomiting, diarrhea, constipation, dyspepsia, rash, urticaria, itching and so on. The drug is contraindicated in people who are allergic to it. The use of Ambroxol for the treatment of diseases should be rationalized under the guidance of a doctor.