The present invention relates to a composition for use in the treatment of a disease or disorder, wherein said disease or disorder is preferably a disease or disorder in which aldosterone overexposure contributes to the symptoms of said disease or disorder, said composition comprises a compound which is (R)-(+)-5-(p-cyanophenyl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyridine or a pharmaceutically acceptable salt thereof, wherein preferably said compound is (R)-(+)-5-(p-cyanophenyl)-5,6,7,8-tetrahydroimidazolium[1,5-a]pyridine dihydrogen phosphate, and wherein said compound has an enantiomeric excess (ee) of the (R) form higher than or equal to 99%, and wherein said composition is administered once daily for at least eight weeks to a patient in need thereof.