The use of compounds of the formula ##STR1## wherein R is hydrogen or a residue --SO.sub.3 M; M is a cation; and R' and R" are hydrogen or an .alpha.-glycosidically linked sulfated mono- or disaccharide residue; and at least one --SO.sub.3 M group is present per monosaccharide unit, as pharmaceutical compositions for the prevention and/or treatment of arteriosclerotic disorders and for the prevention of restenosis after invasive vascular surgery and after organ transplants.