Balasubramanian V, Mann S, Raftery E B, Millar-Craig M W, Altman D
Br J Clin Pharmacol. 1979;8(Suppl 2):119S-123S.
1 The hypotensive action of labetalol was evaluated during 24 h by continuous intra-arterial ambulatory monitoring in 14 patients. The dose used ranged from 300--1800 mg daily. 2 The drug caused a significant reduction of systolic BP in 19 and diastolic BP in 20 of the 24 h of monitoring. Heart rate was also reduced but less markedly than BP. 3 The rapid early morning increase in BP was also effectively controlled. 4 The mild pre-waking increase in BP was not significantly reduced. 5 Labetalol treatment reduced the variation in systolic BP from the lowest observed quarter-hourly mean as compared with pre-treatment values. 6 The quarter hourly mean values were consistently smooth and revealed no sudden variations which might have resulted from postural hypotension.
通过对14例患者进行24小时动脉内动态监测,评估了拉贝洛尔的降压作用。所用剂量范围为每日300 - 1800毫克。
在24小时监测期间,该药物使收缩压在19小时、舒张压在20小时显著降低。心率也有所降低,但不如血压明显。
清晨血压的快速上升也得到了有效控制。
清醒前血压的轻度上升没有显著降低。
与治疗前值相比,拉贝洛尔治疗降低了收缩压从观察到的最低每15分钟平均值的变化。
每15分钟的平均值始终平稳,未显示出可能由体位性低血压导致的突然变化。