(ī-ō'dō-pī'ră-set), A radiographic contrast medium formerly used for intravenous urography; also used to determine the renal plasma flow and the renal tubular excretory mass. Synonym(s): diodone
iodopyracet
(ī-ō″dō-pĭr′ă-sĕt) A radiopaque contrast medium used in intravenous pyelography and urography.