AIM: To compare the antihypertensive efficacy and safety of levoamlodipine besylate and losartan in patiants with mild to moderate essential hypertension.

• 目的:比较国产苯磺酸左旋氨氯地平与氯沙坦对轻、度原发性高血压病人的降压疗效和安全性。