Levothyroxine and Potassium iodide interaction
Levothyroxine and Potassium iodide: the Potassium iodide prescribing label mentions this combination without an instruction to avoid it or change the dose.
Minor
Mentioned, no instruction to avoid. Worth knowing; rarely a reason to change anything on its own.
What the FDA labels say
From the Potassium iodide (Potassium Iodide (Saturated)) label · effective 2026-08-25
Minor
Warnings Potassium iodide can cause fetal harm, abnormal thyroid function, and goiter when administered to a pregnant woman.
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.