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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 (vasodilators). 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.itrates side effects and warnings. Side effects of nitrates include headaches, dizziness, feeling faint and flushed skin. Seek medical advice if you have concerns about side effects. Donât stop taking medicines without seeking medical advice first.