and beta blockers which compete with norepinephrine molecules for binding sites on cardiomyocytes preventing norepinephrine's effects resulting in reduced speed and strength of the contractions which can support more efficient circulation through the body
β 受體阻滯劑,與去甲腎上腺素分子競爭心肌細胞上的結合位點,對抗去甲腎上腺素的作用,從而降低心肌收縮的速度和強度,有助于支持更有效的全身循環·