Sodium Iodide I 123

Sodium Iodide I 123 is an FDA-registered drug product whose active ingredient is SODIUM IODIDE I 123. It is labelled by Cardinal Health 418, Inc taken by oral and marketed as a human prescription drug product. Identifiers on file: NDC 48815-1001, application NDA018671, label effective 20180417. This page reproduces the FDA-approved label text so you can check what a product is, who makes it and how it is supplied before discussing it with a pharmacist or prescriber.

Across FDA labelling, products containing SODIUM IODIDE I 123 are most often described in connection with: administration sodium, iodide indicated, diagnostic procedure, evaluating thyroid. Wording differs between labels, and the full indications section on this page takes precedence when it is present.

INDICATION AND USE Administration of Sodium Iodide I 123 is indicated as a diagnostic procedure to be used in evaluating thyroid function and/or morphology.

DOSAGE AND ADMINISTRATION The recommended oral dose for the average patient (70 kg) is 3.7 to 14.8 MBq (100-400 µCi). The lower part of the dosage range 3.7 MBq (100 µCi) is recommended for uptake studies alone, and the higher part 14.8 MBq (400 µCi) for thyroid imaging. The determination of I 123 concentration in the thyroid gland may be initiated at six hours after administering the dose and should be measured in accordance with standardized procedures. The patient dose should be measured by a suitable radioactive calibration system immediately prior to administration. The capsules can be utilized up to thirty (30) hours after calibration time and date. Thereafter, discard the capsules in accordance with standard safety procedures. The user should wear waterproof gloves at all times when handling the capsules or container. Radiation Dosimetry The estimated absorbed radiation doses to several organs of an average patient (70 kg) from oral administration of the maximum dose of 14.8 MBq (400 µCi) of I 123 are shown in Table 4 for thyroid uptakes of 5, 15, and 25%. For comparison at these three values of thyroid uptake, the estimated radiation doses from doses of 3.7 MBq (100 µCi) I 131, also used as thyroid imaging agent, are also included. Table 4 Radiation Dose Estimates as a Function of Maximum Thyroid Uptake for I 123* Sodium Iodide At Time of Calibration and Expiry Compared to I 131 *Concentration at Time of Calibration: 97% I 123, 2.9% I 125, 0.1% Te 121 Concentration at Time of Expiry: 87.2% I 123, 12.4% I 125, 0.4% Te 121 All Iodine Kinetics treated as in MIRD Dose Estimate Report 5. Bladder voiding interval, 4.8 hours. Tellurium 121 dosimetry taken from ICRP 30. Target Organ Maximum Thyroid Uptake (%) Estimated Radiation Absorbed Doses I 123 mGy/14.8 MBq (rads/400 µCi) I 131 mGy/3.7 MBq (rads/100 µCi) TOC TOE Thyroid 5 25 (2.5) 75 (7.5) 260 (26) 15 77 (7.7) 230 (23) 780 (78) 25 130 (13) 410 (41) 1300 (130) Liver 5 0.089 (0.0089) 0.13 (0.013) 0.16 (0.016) 15 0.10 (0.010) 0.18 (0.018) 0.28 (0.028) 25 0.11 (0.011) 0.24 (0.024) 0.41 (0.041) Ovaries 5 0.18 (0.018) 0.19 (0.019) 0.18 (0.018) 15 0.17 (0.017) 0.18 (0.018) 0.18 (0.018) 25 0.16 (0.016) 0.18 (0.018) 0.17 (0.017) Red Marrow 5 0.12 (0.012) 0.16 (0.016) 0.15 (0.015) 15 0.12 (0.012) 0.18 (0.018) 0.21 (0.021) 25 0.13 (0.013) 0.19 (0.019) 0.27 (0.027) Stomach Wall 5 0.96 (0.096) 0.98 (0.098) 1.7 (0.17) 15 0.89 (0.089) 0.91 (0.091) 1.5 (0.15) 25 0.82 (0.082) 0.85 (0.085) 1.4 (0.14) Small Intestine 5 0.70 (0.070) 0.71 (0.071) 1.2 (0.12) 15 0.65 (0.065) 0.67 (0.067) 1.1 (0.11) 25 0.60 (0.060) 0.62 (0.062) 0.99 (0.099) Testes 5 0.076 (0.0076) 0.089 (0.0089) 0.12 (0.012) 15 0.072 (0.0072) 0.087 (0.0087) 0.12 (0.012) 25 0.068 (0.0068) 0.085 (0.0085) 0.12 (0.012) Bladder 5 1.7 (0.17) 1.7 (0.17) 2.9 (0.29) 15 1.6 (0.16) 1.6 (0.16) 2.7 (0.27) 25 1.4 (0.14) 1.5 (0.15) 2.4 (0.24) Skeleton 5 0.11 (0.011) 0.16 (0.016) 0.12 (0.012) 15 0.12 (0.012) 0.18 (0.018) 0.18 (0.018) 25 0.14 (0.014) 0.21 (0.021) 0.24 (0.024) Total Body 5 0.11 (0.011) 0.16 (0.016) 0.24 (0.024) 15 0.14 (0.014) 0.25 (0.025) 0.47 (0.047) 25 0.17 (0.017) 0.35 (0.035) 0.70 (0.070)

CONTRAINDICATIONS To date there are no known contraindications to the use of Sodium Iodide I 123 capsules.

WARNINGS Females of childbearing age and children under 18 should not be studied unless the benefits anticipated from the performance of the test outweigh the possible risk of exposure to the amount of ionizing radiation associated with the test.

ADVERSE REACTIONS Although rare, reactions associated with the administration of Sodium Iodide isotopes for diagnostic use include, in decreasing order of frequency, nausea, vomiting, chest pain, tachycardia, itching skin, rash and hives.

What is Sodium Iodide I 123 used for?
INDICATION AND USE Administration of Sodium Iodide I 123 is indicated as a diagnostic procedure to be used in evaluating thyroid function and/or morphology.

Who makes Sodium Iodide I 123?
Cardinal Health 418, Inc is the labeler of record for Sodium Iodide I 123.

What form does Sodium Iodide I 123 come in?
administered by oral. Strengths and pack sizes vary by label, so compare the NDC on your pack with the identifier listed on this page.

Is Sodium Iodide I 123 prescription or over-the-counter?
The FDA label for this product is recorded as human prescription drug. Marketing status can differ between strengths and countries, so check the dispensing rules where you live.

Has Sodium Iodide I 123 been recalled?
No FDA recall record in our database matches this product name or manufacturer. Recall data is updated periodically, so a very recent notice may not appear here yet.

Where does this information come from?
All content is reproduced from FDA Structured Product Labelling data via openFDA. It is provided for identification and reference only and is not medical advice.