1 You'll need to avoid strenuous activities, but you may be able to continue normal daily activities, such as going to work. 2  Talk to your doctor about an appropriate level of activity for you. 3  Follow a balanced diet.
Nitroglycerin works by causing your veins to expand or dilate, known as venodilation. It also works on dilating the coronary arteries, contributing to the relief of angina.
Nitroglycerin is a vasodilator, a medicine that opens blood vessels to improve blood flow. It is used to treat angina symptoms, such as chest pain or pressure, that happens when there is not enough blood flowing to the heart.he spray is used on or under the tongue. This topic covers these quick-acting forms of nitroglycerin. Long-acting forms of nitroglycerin are used to prevent angina from happening. They are not used to stop sudden symptoms of angina. These long-acting forms include pills, tablets, skin ointment, and skin patches.