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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.
Amyl Nitrate is often used to obtain an erection because it dilates the blood vessels. Signs of an overdose are bluish-colored lips, fingernails, or palms of hands; dizziness (extreme) or fainting;seizures, feeling of extreme pressure in head; shortness of breath; unusual tiredness or weakness; weak and fast heartbeat.myl Nitrate is often used to obtain an erection because it dilates the blood vessels. Signs of an overdose are bluish-colored lips, fingernails, or palms of hands; dizziness (extreme) or fainting;seizures, feeling of extreme pressure in head; shortness of breath; unusual tiredness or weakness; weak and fast heartbeat.