Definition: A class I anti-arrhythmic agent (one that interferes directly with the depolarization of the cardiac membrane and thus serves as a membrane-stabilizing agent) with a depressant action on the heart similar to that of guanidine. It also possesses some anticholinergic and local anesthetic properties.
4-(isopropylamino)-2-(2-pyridyl)-2-phenylbutyramide [ 4-(isopropylamino)-2-(2-pyridyl)-2-phenylbutyramide phosphate,deisopropyldisopyramide,desisopropyldisopyramide,mono-N-dealkylated disopyramide,mono-dealkyldisopyramide ] mono-N-dealkylated disopyramide metabolite; RN given refers to parent cpd; structure in first source