the ability of isosorbide dinitrate ( isdn ) and its two metabolites , 5-isosorbide mononitrate ( 5-ismn ) and 2-isosorbide mononitrate ( 2-ismn ) , to relax phenylephrine-contracted rabbit aortic rings was compared .
C0022252
isosorbide dinitrate
C0064079
isosorbide mononitrate