Category:硝酸鹽

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硝酸鹽 (English: Nitrates)

硝酸鹽為外周血管和冠狀血管的血管擴張劑，使用於治療心絞痛、心臟衰竭和心肌梗塞。

硝酸鹽被稱為硝基血管擴張劑。於血管肌肉的作用中，靜脈的擴張優於動脈的擴張。靜脈擴張會因靜脈的聚集而減少靜脈回流，降低左心室舒張容積和壓力（即為前負荷減少）。

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