Asthma emergency medication is generally preferred to beta agonists, the drugs can play a role in diastolic bronchial smooth muscle, relieve bronchospasm, so as to control the acute attack of asthma, commonly used drugs are albuterol, terbutaline, etc.. 1. Salbutamol: commonly used dosage forms include aerosol, tablet, capsule, etc. It can prevent and treat bronchial asthma, wheezing bronchitis and other respiratory diseases accompanied by bronchospasm, and adverse reactions such as urticaria and low blood pressure may occur after using the drug. 2. Terbutaline: commonly used dosage forms include powdered mist, aerosol, etc. It can be used for bronchial asthma, chronic wheezing bronchitis, obstructive emphysema and other lung diseases, and adverse reactions such as rapid heartbeat, skin rash and headache may occur after using the drug. The above drugs need to be standardized and rationally applied under the guidance of professional physicians and pharmacists. If the symptoms fail to improve or even gradually worsen, you should consult a regular hospital in time and cooperate with the doctor to improve the examination and standardize the treatment.