还阳乐口服液使6～8W龄Wistar大鼠，经42d给药后的精子数明显增加，活力增强，存活时间延长，卵巢重量明显增加；长期给药可使大鼠体重明显增加并可显著增加大鼠睾丸和副睾的重量，光镜下显示曲精管增大，精原细胞增多，家兔子宫内膜转化作用研究显示有一定的孕激素活性。 Huan Yang Lok oral liquid so that 6 ~ 8W Wistar rats after 42d sperm count was significantly increased, increased vitality, prolonged survival, ovarian weight increased significantly; long-term administration can make rats significantly increased body weight and significant Increasing the weight of testis and epididymis in rats, light microscope shows that the seminiferous tubules increased, spermatogonia increased, the study of rabbit endometrial transformation showed some progesterone activity.