一、常用平喘药简介(一)交感神经受体兴奋剂沿用已久的肾上腺素与麻黄素目前已少用,现常用制剂有: 1.异丙肾上腺素为β_1和β_2受体兴奋剂,其特点为喷吸后起效快,扩张支气管的作用较强,但作用时间短,控制哮喘发作用0.25～0.5%气雾剂喷吸,每次0.1～0.2ml,如用量较多可诱发心动过 First, the general introduction of antiasthmatic drugs (a) sympathetic receptor agonists have been used for a long time ephedrine and ephedrine has been used less, are commonly used preparations are: 1. Isoproterenol beta 1 and beta 2 receptor agonists, It is characterized by rapid onset of squirting, the expansion of the role of the bronchisis strong, but the role of short-term control of asthma attack 0.25 to 0.5% aerosol spray, each 0.1 ~ 0.2ml, such as the amount can be induced more cardiac Too