The dosage of Asmec is: for patients over 15 years old, they need to take 2 capsules 3 times a day, preferably after meals; for children over 8 years old and under 15 years old, they also need to take 1 capsule 3 times a day, which can be increased or decreased according to their age and condition. The main ingredient of Asmec is methoxynamine hydrochloride, which can inhibit the contraction of bronchial tubes and relieve coughing during asthma attacks; noscapine is a peripheral cough suppressant, which can inhibit coughing; aminophylline can also inhibit bronchospasm, and can also inhibit the swelling of bronchial mucosa, which can relieve coughing during asthma attacks and make sputum easier to cough up; in addition, it contains chlorpheniramine maleate, which has an antihistamine effect, also It is an anti-allergic effect. It should not be used together with other cough expectorant drugs during the medication period, and should be discontinued promptly in case of allergy.