硝酸甘油是防治冠心病心绞痛的特效常用药品之一。它起效快,舌下含化后1～2分钟就起效,心绞痛即可缓解。有时病人在解大便前、上楼梯时,也先含服硝酸甘油片,以预防心绞痛的发作。因此,很多病人将它视为“救命药”,经常放在身边。但是如果使用硝酸甘油不当,其效果就不理想。那么 Nitroglycerin is one of the commonly used drugs for the prevention and treatment of coronary heart disease angina pectoris. It works fast, sublingual 1 to 2 minutes after onset, angina can be alleviated. Sometimes patients in the solution before the stool, up the stairs, it is also the first nitroglycerin tablets, to prevent the onset of angina. Therefore, many patients regard it as a “lifesaver” and often stay with them. However, if the use of improper use of nitroglycerin, its effect is not satisfactory. Then