One aspect of the invention relates to a graft, a surface of which is
coated with an amphiphilic block copolymer that includes both hydrophobic
and hydrophilic polymer chains. An amphiphilic block copolymer coating
according to the invention can serve as a carrier for a very broad range
of drugs, possibly including every drug presently used, being considered
for use, or likely to be used in the future to inhibit stenosis. The
release rates of the drugs can be controlled, for example, through the
length of the polymer chains, through their ratio, or through the degree
of cross-linking.