硝酸甘油除了能有效地缓解心绞痛外,还常能缓解与心绞痛有关的呼吸困难症状。在心绞痛、急性心肌梗死和高血压病时,硝酸甘油有降低肺动脉压和肺毛细血管嵌入压的作用。由于它对左心室衰竭患者能降低肺动脉压,人们认为也可用以减轻二尖瓣狭窄患者(肺动脉压升高而无左心室衰竭)的肺血管充血。 In addition to nitroglycerin can effectively relieve angina pectoris, but also can often relieve symptoms of dyspnea associated with angina pectoris. In angina, acute myocardial infarction and hypertension, nitroglycerin has the effect of reducing pulmonary arterial pressure and pulmonary capillary embedding pressure. Because of its ability to lower pulmonary arterial pressure in patients with left ventricular failure, it is also thought to be useful in reducing pulmonary vascular congestion in patients with mitral stenosis (pulmonary hypertension without left ventricular failure).