单选题
发布日期:2021-03-15
硝苯地平
氨氯地平
尼莫地平
维拉帕米
氟桂利嗪
钙拮抗剂(Calcium Antagonists ),也叫钙通道阻滞剂(Calcium Channel Blockers),主要通过阻断心肌和血管平滑肌细胞膜上的钙离子通道,抑制细胞外钙离子内流,使细胞内钙离子水平降低而引起心血管等组织器官功能改变的药物。临床常用的有硝苯吡啶、异搏定、硫氮唑酮等。对心脏的作用,主要是抑制心肌去极化过程中第二时相钙离子内流,降低细胞内钙,减弱心肌收缩力,降低心肌氧耗量,同时抑制窦房结和房室结的钙内流,使窦房结自律性下降,房室传导减慢,心室率降低,如异搏定,氮唑酮。
脑血,汉语词语,拼音为nǎo xuè,基本意思是脑汁;脑筋。
常用指经常使用;日常应用。出自《墨子·小取》等书。
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