from merck amp co inc whitehouse station n j calcium channel blockers such as nifedipine colchicine fibroblast growth factor fgf antagonists fish oil omega 3 fatty acid histamine antagonists lovastatin an inhibitor of hmg coa reductase a cholesterol lowering drug brand name mevacor u00ae from merck amp co inc whitehouse station n j monoclonal antibodies such as those specific for platelet derived growth factor pdgf receptors nitroprusside phosphodiesterase inhibitors prostaglandin inhibitors suramin serotonin blockers steroids thioprotease inhibitors triazolopyrimidine a pdgf antagonist and nitric oxide an example of an antiallergic agent is permirolast potassium other therapeutic substances or agents which may be appropriate include alpha interferon genetically engineered epithelial cells tacrolimus dexamethasone and rapamycin and structural derivatives or functional analogs thereof such as 40 o 2 hydroxy ethyl rapamycin known by the trade name of everolimus available from novartis 40 o 3 hydroxy propyl rapamycin 40 o 2 2 hydroxy ethoxy ethyl rapamycin and 40 o tetrazole rapamycin the apparatus and method of the present invention have been described in conjunction with a stent however the apparatus and method can also be used with a variety of other medical devices examples of the implantable medical device that can be used in conjunction with the embodiments of this invention include stent grafts and grafts the underlying structure or scaffolding design of the device can be of virtually any design the device can be made of a metallic material or an alloy such as but not limited to cobalt chromium alloys e g elgiloy stainless steel 316l u201c mp35n u201d u201c mp20n u201d elastinite nitinol tantalum tantalum based alloys nickel titanium alloy platinum platinum based alloys such as e g platinum iridium alloy iridium gold magnesium titanium titanium based alloys zirconium based alloys or combinations thereof devices made from bioabsorbable.