β-阻断剂广泛的临床应用,也带来了药源性疾病;一旦过量可出现下列中毒症状:心衰、低血压、心率与传导减慢和支气管痉挛等。习惯上采用阿托品、异丙肾上腺素或多巴胺等解救;但疗效往往不满意。 胰高血糖素(glucagon)静注,可加强心肌收缩力、加快心率、并改善房室传导。因此,可以逆转过量β-阻断剂的毒性作用。当在1～2min内静注 β-blockers a wide range of clinical applications, but also brought a drug-induced disease; once overdose can appear the following symptoms of poisoning: heart failure, hypotension, heart rate and conduction slow down and bronchial spasm. Traditionally used atropine, isoproterenol or dopamine rescue; but the effect is often not satisfied. Glucagon intravenous injection, can enhance myocardial contractility, speed up heart rate, and improve atrioventricular conduction. Thus, the toxic effects of excess beta-blockers can be reversed. When in 1 ~ 2min intravenous injection