Iodohippurate I131 Sodium
Iodohippurate I131 Sodium is a radiopharmaceutical agent used for nuclear medicine imaging of the kidneys. It contains radioactive iodine-131 bound to hippuric acid, allowing visualization and measurement of renal function, perfusion, and urinary drainage patterns.
A diagnostic radiopharmaceutical used for nuclear imaging to assess kidney function and detect urinary tract abnormalities.
Key facts at a glance
- RxNorm
- 91540
- Generic
- Iodohippurate I131 Sodium
- Class
- pin-variant
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
This medication is used for renal imaging studies including evaluation of kidney function (renogram), assessment of renal perfusion, detection of urinary tract obstructions, evaluation of renal artery stenosis, and monitoring of kidney transplant function.
After intravenous administration, Iodohippurate I131 Sodium is rapidly cleared from the bloodstream by the kidneys through glomerular filtration and tubular secretion, allowing external gamma cameras to track its passage and quantify renal function and drainage.
This is a radioactive medication requiring proper radiation safety precautions; thyroid-blocking agents may be administered to protect the thyroid from free radioactive iodine. It is contraindicated in pregnancy and should be used with caution in breastfeeding patients. Only qualified healthcare facilities with appropriate nuclear medicine capabilities should administer this agent.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 28, 2026. · Read our editorial policy