According to the indications of the manual, infants can take Ambroterol Oral Solution orally, which has the effect of relaxing bronchial smooth muscle and promoting sputum coughing out. Ambroterol Oral Solution is mainly used to treat respiratory diseases, such as emphysema, acute and chronic bronchitis caused by coughing, sputum viscous, sputum removal difficulties. It can be used in children and even infants, but the dosage should be adjusted according to age and weight. Ambroterol oral solution is contraindicated in hypertrophic cardiomyopathy and those who are allergic to it. It is contraindicated in patients with toxic hyperthyroidism, tachyarrhythmias and adrenal tumors. It can be seen with headache, hand tremor, palpitations, arrhythmia, allergic rash, gastrointestinal discomfort. It is recommended to consult a specialist for the specific use of the drug, do not self-medicate.