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比索洛尔是一种高选择的β1肾上腺受体拮抗剂,无内在拟交感活性和膜稳定活性,对支气管和血管平滑肌的β1受体有高亲和力,对支气管、血管平滑肌和调节代谢的β2受体仅有很低的亲和力。通过阻滞心脏受体而降低机体对交感肾上腺素能活性的反应,引起心率减慢、心肌收缩力降低,从而?
Bisoprolol is a highly selective β1 adrenergic receptor antagonist with no intrinsic sympathomimetic and membrane-stabilizing activity, high affinity for β1 receptors in bronchial and vascular smooth muscle, β2 receptors in bronchial, vascular smooth muscle and regulatory metabolism The body has only a very low affinity. By blocking the heart receptor and reduce the body’s response to sympathetic adrenergic activity, causing heart rate slowed down, myocardial contractility reduced, thus?