Is Sodium iodide i 123 approved by the US FDA?

Drugs@FDA lists 6 application product lines for Sodium iodide i 123, including SODIUM IODIDE I 123 (Prescription); SODIUM IODIDE I 123 (Prescription); SODIUM IODIDE I 123 (Prescription); SODIUM IODIDE I 123 (Discontinued); SODIUM IODIDE I 123 (Discontinued).

Is Sodium iodide i 123 authorised in the United Kingdom?

The MHRA category lists of UK marketing authorisations include 2 products containing Sodium iodide i 123, including SODIUM IODIDE (123I) INJECTION, 37 MBQ/ML SOLUTION FOR INJECTION; SODIUM IODIDE (I123) INJECTION.

Active substance

Sodium iodide i 123

US FDA 6
UK MHRA 2

Open in the medicines table

US FDA United States — FDA approvals (Drugs@FDA)

Product	Strength	Form · route	Applicant	Status	First approved
SODIUM IODIDE I 123	100uCi; 200uCi	capsule · oral	CARDINAL HEALTH 418	Prescription	27 May 1982
SODIUM IODIDE I 123	100uCi	capsule · oral	CURIUM	Prescription	28 Feb 1989
SODIUM IODIDE I 123	200uCi	capsule · oral	CURIUM	Prescription	28 Feb 1989
SODIUM IODIDE I 123	100uCi; 200uCi	capsule · oral	GE HEALTHCARE	Discontinued	24 Mar 1976
SODIUM IODIDE I 123	2mCi/ML Federal Register determination that product was not discontinued or withdrawn for safety or effectiveness reasons	solution · oral	GE HEALTHCARE	Discontinued	24 Mar 1976
SODIUM IODIDE I 123	400uCi	capsule · oral	CARDINAL HEALTH 418	Discontinued	27 May 1982

UK MHRA United Kingdom — marketing authorisations

Product	Authorisation	Holder	Legal status
SODIUM IODIDE (123I) INJECTION, 37 MBQ/ML SOLUTION FOR INJECTION	PL 00221/0138	GE HEALTHCARE LIMITED	POM
SODIUM IODIDE (I123) INJECTION	PL 12288/0009	CURIUM NETHERLANDS B.V.	POM

Values as published by each source: SFDA human drug list (4-2026, as published by the Council of Health Insurance; indications from the CHI Daman Drug Formulary), Drugs@FDA, EMA medicines data, Health Canada Drug Product Database (Open Government Licence – Canada), MHRA category lists of UK marketing authorisations (Open Government Licence v3.0), CMS NADAC, NHS Drug Tariff Part VIIIA (NHSBSA Copyright, Open Government Licence v3.0), WHO Model List of Essential Medicines (CC BY 3.0 IGO; regrouped by active substance, not created by WHO), EMA PRAC, US FDA safety-related labeling changes and MHRA Drug Safety Update (Open Government Licence v3.0). Sources and reuse. Not a substitute for the official registers or the product information.