in a randomized cross-over trial of four groups of patients ( total 49 patients ) the serum concentrations of isosorbide dinitrate ( isdn ) , isosorbide-2-mononitrate ( is-2-mn ) and isosorbide-5-mononitrate ( is-5-mn ) were measured under steady-state conditions after administration of 20 , 40 , 60 and 80 mg , respectively , of two isdn preparations , the two being bioequivalent .
C0064079
isosorbide-5-mononitrate
C0022252
isdn