Wegener's granulomatosis Temporal arteritis (Giant cell arteritis) Takayasu's arteritis Henoch-Schönlein purpura Predominantly cutaneous vasculitis (hypersensitivity vasculitis) Sarcoidosis Amyloidosis Currently on warfarin Cr > 2.0 Fish Allergy Pregnancy or unwillingness to use some form of birth control in women of child-bearing age during the 8 weeks.