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Nitrates are one of a type of drug known as vasodilators, that are used to treat angina in people with coronary artery disease or chest pain caused by blocked blood vessels of the heart. They work to control angina by relaxing the coronary arteries so blood can flow more easily to the heart.
Nitrates widen blood vessels so blood can pass more easily. Doctors prescribe them to treat chest pain (angina) and reduce heart failure symptoms. Examples of nitrates include nesiritide (Natrecor) and hydralyzine (Apresoline). Nitrates can come as an intravenous (IV) infusion, a cream formulation, a fast acting tablet that goes under the tongue, or a traditional pill form.