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静脉注射大豆叶皂甙（Ts）对大鼠有明显的降低动脉血压的作用，并呈现量效关系，此降压作用不被阿托品对抗也不能减弱去甲肾上腺素的升压作用，说明大豆叶皂甙的降压作用既不是兴奋了M受体也不是阻断α受体引起的，有可能是通过其它受体或直接的扩血管作用的结果。当动脉血压较低时，Ts使左室收缩压（LVSP）、室内压最大变化速率（＋dp／dtmax）、动脉收缩压（SAP）、动脉舒张压（DAP）都不同程度地升高，平均动脉压（MAP）可被酚妥拉明和心得安降低。
Intravenous injection of soybean leaf saponin (Ts) has a significant effect on the reduction of arterial blood pressure in rats and shows a dose-effect relationship. This antihypertensive effect is not counteracted by atropine and does not reduce the pressure-boosting effect of norepinephrine, indicating that soybean leaf saponin The antihypertensive effect is neither excited by the M receptor nor blocked by the alpha receptor, and may be the result of other receptors or direct vasodilator effects. When arterial blood pressure is low, Ts increases the left ventricular systolic pressure (LVSP), the maximum rate of change in the intraventricular pressure (+dp/dtmax), arterial systolic pressure (SAP), and arterial diastolic pressure (DAP) to varying degrees. Pressure (MAP) can be reduced by phentolamine and propranolol.