Objective: To evaluate the effects of prophylactic intravenous administration of the 5-hydroxytryptamine subtype 3(5-HT3) receptors antagonist azasetron on intrathecal morphine-induced pruritus.
目的：观察5-羟色胺（5-HT3）受体拮抗药阿扎司琼静脉预先注射对鞘内吗啡所致的瘙痒发生防治效果。
2
Objective To investigate the distribution of the subtypes of 5-hydroxytryptaminereceptors in rat submaxillary gland and the functions of 5-HT.