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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.
All drugs considered to be party drugs are controlled substances listed in the control schedules maintained by the Drug Enforcement Agency (DEA). A few drugs are most common at dance parties include: 1  Amyl nitrates (butyl nitrate, poppers, rush, hardware, locker room, aroma of man).