plasma concentrations of isosorbide dinitrate ( isdn ) and its two active metabolites 2-isosorbide mononitrate ( 2-ismn ) and 5-isosorbide mononitrate ( 5-ismn ) have been measured during and for 6 hr after intravenous infusion at a rate of 2.5 mg/hr during 1.75 hr in six cardiac patients , by a capillary gas chromatographic method .
C0022252
isosorbide dinitrate
C0064079
5-ismn