Intravenous nitroglycerin was administered in all patients and finger photoplethysmography was used to evaluate the cardiovascular parameters before, during, and after nitroglycerin infusion. “Some ...

When given for hours as a continuous dose, the heart medication nitroglycerin backfires -- increasing the severity of subsequent heart attacks, according to a study of the compound in rats. When given ...

When something restricts blood flow to the heart muscle, a person may experience intense chest pain that doctors call angina. People can use the drug nitroglycerin to relieve this pain. Most often, ...