Handslip P D, Dart A M, Davies B H
Thorax. 1981 Oct;36(10):741-4. doi: 10.1136/thx.36.10.741.
The bronchodilation produced by increasing intravenous doses of aminophylline, salbutamol, and a combination of aminophylline and salbutamol given in random order was determined in 10 stable asthmatics on three consecutive days. On a fourth day, response to placebo injections was determined. Forced expiratory volume in one second (FEV1) was measured at two-minute intervals after each dose until FEV1 returned to a new baseline. At no dosage level was there synergy between the two agents in terms of either mean percentage increase in FEV1 or the integrated response. The failure to demonstrate synergy has implications both with respect to the clinical use and the underlying mechanism of action of these drugs.
在10名病情稳定的哮喘患者中,连续三天按随机顺序静脉注射递增剂量的氨茶碱、沙丁胺醇以及氨茶碱与沙丁胺醇的组合,测定其支气管扩张作用。在第四天,测定患者对安慰剂注射的反应。每次给药后每隔两分钟测量一次一秒用力呼气量(FEV1),直至FEV1恢复到新的基线水平。在任何剂量水平下,就FEV1的平均百分比增加或综合反应而言,两种药物之间均未显示出协同作用。未能证明协同作用对于这些药物的临床应用和潜在作用机制均具有影响。