Results: According to the dose-response curves,the potency ratio of atracurium:rocuronium was 1:1.2.There were significant differences in the ED_(50),ED_(90),and ED_(95) between the two drugs.

• 结果:根据量-效关系曲线,阿曲库铵和罗库溴铵的作用强度比率为1:1．2,两药的ED_(50)、ED_(90)和ED_(95)均有显著性差别。