The clinical recommendation is about 7 days, after the symptoms are relieved, the drug can be stopped gradually. Asmec, the compound methocarbamol capsule, is mainly used for bronchial asthma or wheezing bronchitis and other respiratory diseases caused by coughing, coughing, wheezing and other symptoms, belongs to the symptomatic treatment of drugs. Methocarbamol capsules are mainly composed of noscapine, aminophylline, chlorpheniramine maleate, and have the effect of relieving cough, antispasmodic, asthma, and reducing the irritation of the throat, i.e., bronchial tubes, with a clinically recommended duration of use of about 7 days, and the amount used varies among patients of different ages. Some patients may experience nausea, vomiting, dizziness, fatigue, loss of appetite and other adverse effects when taking these drugs. Therefore, patients are advised to take the drugs under the guidance of a clinician and to discontinue the drugs and visit the respiratory department of a hospital in case of adverse reactions.