“…There are 5 previous reports of renal infarction due to triptan use, with only 1 case of sumatriptan-associated renal infarction in a transplanted kidney. 21 , 22 , 23 , 24 In the case of the transplant kidney renal infarction, the presumed etiology was concomitant use of cyclosporine, a known vasoconstrictor, and sumatriptan, leading to renal infarction. Our case identified no other vasoconstrictive agents outside of the repeated sumatriptan use.…”