这个词是什么意思？
A cardioselective ADRENERGIC BETA-1 RECEPTOR ANTAGONIST (beta-blocker) that functions as a VASODILATOR through the endothelial L-arginine/ NITRIC OXIDE system. It is used to manage HYPERTENSION and chronic HEART FAILURE in elderly patients.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D000068577 · MeSH 2026。
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