The effects of 4 week treatment with tetrandrine (200mg3/d,po) and nimodipine (40mg3/d,po) on renal blood flow (RBF) and glomerular filtration rate (GFR) were studied in 30 patients with essential hypertension,in single blind,random and cross-over trial.

• 采用单盲、随机和交叉的方法，观察粉防己碱（200mg3/d，po，4w）和尼莫地平（40mg3/d，po，4w）对30例原发性高血压患者的肾血流动力学的影响。