Tridil

Nitroglycerin, also known as glyceryl trinitrate (GTN), is a medication used for heart failure, high blood pressure, anal fissures, painful periods, and to treat and prevent chest pain caused by decreased blood flow to the heart (angina) or due to the recreational use of cocaine.[1][2][3][4] This includes chest pain from a heart attack.[1] It is taken by mouth, under the tongue, applied to the skin, or by injectio... [wikipedia]