Angina is usually due to heart disease. A fatty substance called plaque builds up in your arteries, blocking blood flow to the heart muscle. This forces your heart to work with less oxygen. That causes pain. You may also have blood clots in the arteries of your heart, which can cause heart attacks. Other, less…


Nitroglycerin (commonly called just nitro) is a vasodilator, meaning it’s a medicine that opens blood vessels to improve blood flow. It is used to treat angina pectoris symptoms, such as pressure or chest pain that occurs when there is not enough blood flowing to the heart. To improve the blood flow, Nitro opens up the…

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