A method for making an intravascular stent by applying to the body of a
stent a solution which includes a solvent, a polymer dissolved in the
solvent and a therapeutic substance dispersed in the solvent and then
evaporating the solvent. The inclusion of a polymer in intimate contact
with a drug on the stent allows the drug to be retained on the stent
during expansion of the stent and also controls the administration of
drug following implantation. The adhesion of the coating and the rate at
which the drug is delivered can be controlled by the selection of an
appropriate bioabsorbable or biostable polymer and the ratio of drug to
polymer in the solution. By this method, drugs such as dexamethasone can
be applied to a stent, retained on a stent during expansion of the stent
and elute at a controlled rate.