Iothalamate Sodium I-125

**Semantic type:** Pharmacologic Substance

**Definition:** The sodium salt form of iothalamate, an organic iodine compound, labeled with iodine I-125 and used as a radiopharmaceutical. Iothalamate sodium I-125 is cleared by glomerular filtration without tubular secretion or reabsorption and can be used as a diagnostic tool to determine the glomerular filtration rate.

**Synonyms:** - Benzoic Acid, 3-(acetylamino)diiodoiodo-(sup 125)I-5-((methylamino)carbonyl)-, Monosodium Salt - Diatrizoate Sodium I 125 - Glofil-125 - IOTHALAMATE SODIUM I-125 - Iothalamate Sodium (125I) - Monosodium 5-acetamido-triiodo-N-methylisophthalamate, labeled with Iodine-125