最近,FDA警告长效β激动剂沙美特罗可能会增加严重哮喘的发作几率并可能导致死亡。目前吸入皮质激素是治疗持续性哮喘的最有效方法。但对于严重哮喘的患者,这些药物常常不能完全控制哮喘症状,必须吸入支气管扩张药物作为补充治疗。上世纪90年代,短效β2肾上腺素激动剂是唯一有 Recently, the FDA warned that long-acting beta-agonist salmeterol may increase the chances of severe asthma attacks and could lead to death. Inhalation of corticosteroids is currently the most effective treatment of persistent asthma. However, in patients with severe asthma, these drugs often do not have complete control of asthma symptoms and bronchodilators must be inhaled as a complementary therapy. 90s of last century, short-acting β2 adrenergic agonists is the only