Patent 8188296 was granted and assigned to GE Healthcare on May, 2012 by the United States Patent and Trademark Office.
The present invention relates to stabilized 123I-labelled radiopharmaceutical compositions having a stabilizer which comprises gentisic acid or a salt thereof with a biocompatible cation. Methods of preparation of the stabilized radioiodine compositions as well as the use of gentisic acid to stabilize 123I-labelled radiopharmaceutical at a specified radioactive concentration range are also described.