Imhof P R, Keller G, Brunner L
Arzneimittelforschung. 1975 Jul;25(7a):1121-2.
In healthy persons the changes in heart rate and myocardial contractility induced by oxprenolol and phentolamine are more marked in the erect position and during physical exertion then in recumbency. Similarly, a dose-effect relation with regarded to the negatively inotropic activity of oxprenolol is more readily detectable in the upright position.
在健康人中，氧烯洛尔和酚妥拉明引起的心率和心肌收缩力变化在直立位和体力活动时比卧位时更明显。同样，氧烯洛尔负性肌力活性的剂量效应关系在直立位时更容易检测到。
