Potassium iodide should be used with caution with lithium because concurrent
use of both medications can lead to hypothyroidism.
PREGNANCY: There is increased risk of thyroid suppression in the newborn with
potassium iodide. Potassium iodide should not be used during pregnancy.
NURSING MOTHERS: Potassium iodide is excreted in breast milk. Use in nursing
mothers can cause skin rash and thyroid suppression in nursing infants.
Therefore, potassium iodide should not be used in nursing mothers.
SIDE EFFECTS: Common side effects of potassium iodide are stomach upset,
diarrhea, nausea, vomiting, skin rash, weakness, numbness, fever, and swelling
of throat or neck.
REFERENCES: FDA Prescribing Information
Potassium iodide – Medscape
Medically Reviewed by a Doctor on 10/6/2014
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