nitroglycerin tablets

nitroglycerin tablets, tablets of glyceryl trinitrate, a volatile ester prepared by the action of nitric and sulfuric acids on glycerol, available by prescription. A tablet placed under the tongue provides prompt relief of chest pain from angina, and sustained-release forms (and patches) are available for preventing angina. To derive benefit from these drugs, they must not be used continuously: The body desensitizes to them.