卡维地洛是第三代 β受体阻滞剂 ,除具有非选择性阻断 β受体外 ,还可阻断 α1 受体 ,并具有抗氧化、抗增生、抑制细胞凋亡、钙通道阻滞作用、肾脏保护作用及不降低胰岛素敏感性等功能 ,本文旨在用兼有α1 和β阻断作用的降压药拉贝洛尔作对照 ,观察卡维地洛的降压疗效及不良反 Carvedilol is the third generation of β-blocker, in addition to non-selective block β receptor, but also block the α1 receptor, and has antioxidant, anti-proliferation, inhibition of apoptosis, calcium channels Blockade, renal protection and does not reduce insulin sensitivity and other functions, this paper aims to use both α1 and β blockade of the antihypertensive drug labetalol as a control to observe the antihypertensive efficacy and adverse effects of carvedilol anti-