Ambroterol Oral Solution can be taken before or after meals, there is no clear clinical requirement. Ambroterol oral solution, belongs to a kind of asthma, expectorant drugs. Clinically, it is generally used to treat acute and chronic respiratory diseases caused by coughing, phlegm viscous, difficult to expel phlegm and other conditions. Adults commonly used amount is generally twice a day, put in the morning and evening before meals can be taken. In the process of application, it should be noted that patients may experience dizziness, headache, numbness of the limbs and other symptoms. Occasionally, it may cause palpitations (rapid heartbeat, often accompanied by panic), tachycardia, elevated blood pressure and other symptoms. It may also cause symptoms such as bronchospasm and low blood pressure. Therefore, it is usually contraindicated in patients with hypertrophic cardiomyopathy and those who are allergic to this drug. Ambroterol Oral Solution should always be taken correctly under the guidance of a medical professional to avoid adverse effects.