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Medicines potassium iodideQuestion & answer

potassium iodide · Medicine question

Can it affect thyroid scans or radioiodine treatment?

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

The answer

Answer

Yes. It can reduce radioiodine uptake and interfere with thyroid diagnostic procedures or treatment; inform the relevant clinical team.

Sources for this answer

Potassium iodide 65 mg tabletsemc · SmPC Current selected SmPC · Version 3

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The full medicine guide

potassium iodide

Read the wider context, including uses, precautions and the sources behind this medicine guide.

Read the potassium iodide guide

More questions about potassium iodide

What radiation does potassium iodide protect against?Should it be taken before any emergency warning?Can iodised salt replace the tablets?Can the tablets be crushed?

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