β受体激动剂主要包括异丙肾上腺素、肾上腺素,以及沙丁胺醇(舒喘灵)、特布他林(间羟舒喘灵)等。这类药物具有抗炎、抗过敏,降低气道高反应性及解除支气管平滑肌痉挛之作用。是用于哮喘急性发作期时解除支气管痉挛所致支气管狭窄的首选药物之一。β受体激动剂用于哮喘治疗,由于药物的特殊作用,应首先考虑吸入途径。例如,沙丁胺醇及特布他林吸入,不仅适用于轻中度发作者,而且对于严重哮喘发作也有良好疗效,且较少引起心悸等副作用。 但在以往的治疗中,不少医生或病人习惯于轻中度发作时口服 Beta-agonists include isoproterenol, epinephrine, and salbutamol (salbutamol), terbutaline (methotrexate) and so on. These drugs have anti-inflammatory, anti-allergic, reduce airway hyperresponsiveness and relieve bronchial smooth muscle spasm. Is one of the preferred drugs for relieving bronchoconstriction caused by bronchospasm during the acute exacerbation of asthma. Beta-agonists are used in the treatment of asthma and due to the specific effect of the drug, the route of inhalation should be considered first. For example, salbutamol and terbutaline inhalation, not only for mild to moderate onset, but also for severe asthma attacks have good effect, and less cause side effects such as palpitations. However, in the past treatment, many doctors or patients accustomed to oral mild to moderate attack