iodine I 131-ethiodized oil
(I-oh-dine … eh-THY-oh-dized oyl)
A radioactive substance being studied in the treatment of liver cancer. It is a form of poppy seed oil that contains iodine, some of which is the radioactive substance iodine I 131. Iodine I 131-ethiodized oil builds up in the blood and lymph vessels in the liver and may kill cancer cells. Also called iodine I 131-Lipiodol.