the selected patients were divided in 4 groups of 50 patients and received treatment for a further 4 weeks with either isosorbide dinitrate retard at a dosage of 2 tablets ( group d2 ) or 3 tablets ( d3 ) per day or isosorbide-5-mononitrate at a dosage of 2 tablets ( group m2 ) or 3 tablets ( group m3 ) per day .
C0022252
isosorbide dinitrate
C0064079
isosorbide-5-mononitrate