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.
Recognition of the value of glyceryl trinitrate (nitroglycerine) in the treatment and prevention of anginal attacks has confirmed the belief that coronary blood flow may be influenced favorably by drug therapy and has led to a search for vasodilators capable of more prolonged action.