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. a chemical well known as an explosive but also having medical uses; it is a vasodilator and is used medically especially in the prophylaxis and treatment of angina pectoris. Called also glyceryl trinitrate.