硝普钠和硝酸甘油是目前使用较多的降压药物。在国外,ATP也较常用。异搏定通过阻断收缩组织的兴奋-收缩偶联而使血管平滑肌舒张,血压下降,低血压时的反射性心率增快可在一定程度上被抑制,因此,有作者认为它有用作控制性降压的可能。一、作用机制 Sodium nitroprusside and nitroglycerin are currently used more antihypertensive drugs. In foreign countries, ATP is also more commonly used. Verapamil inhibits vascular smooth muscle relaxation by decreasing the excitability-contraction coupling of contracting tissue, lowering blood pressure and increasing reflexive heart rate during hypotension may be suppressed to a certain extent, and therefore, it is considered as useful for controlling Step down the possibility. First, the mechanism of action