Comparative Pharmacology
Head-to-head clinical analysis: IOSAT versus POTASSIUM IODIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: IOSAT versus POTASSIUM IODIDE.
IOSAT vs POTASSIUM IODIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Blocks thyroidal uptake of radioactive iodine isotopes, reduces thyroid exposure to radiation by saturating thyroid gland with stable iodine.
Potassium iodide suppresses thyroid hormone synthesis and release via the Wolff-Chaikoff effect, inhibiting iodide organification and reducing vascularity of the thyroid gland.
Adults: 130 mg orally once daily for potassium iodide (SSKI 1 g/mL). For thyroid protection in radiation exposure: 130 mg orally once, may repeat after 24 hours if necessary.
Oral: 300 mg (0.3 mL of saturated solution) three times daily for thyroid protection in radiation exposure; for hyperthyroidism preoperative: 60-250 mg (0.06-0.25 mL) three times daily.
None Documented
None Documented
Clinical Note
moderateWarfarin + Potassium Iodide
"Warfarin may decrease the anticoagulant activities of Potassium Iodide."
Clinical Note
moderatePhenprocoumon + Potassium Iodide
"Phenprocoumon may decrease the anticoagulant activities of Potassium Iodide."
Clinical Note
moderatePhenindione + Potassium Iodide
"Phenindione may decrease the anticoagulant activities of Potassium Iodide."
Clinical Note
moderateAcenocoumarol + Potassium Iodide
3-5 days in euthyroid individuals; prolonged in hyperthyroidism (6-12 days) and renal impairment (up to 30 days)
Terminal half-life in euthyroid individuals is approximately 13 days (range 10–15 days). In hyperthyroidism, half-life may be shortened to 5–6 days due to increased thyroid clearance; in hypothyroidism, half-life may be prolonged up to 40 days.
Renal: >99% as iodide; fecal/biliary: <1%
Renal: >90% of absorbed iodide is excreted in urine; fecal elimination is negligible (<2%).
Category C
Category C
Antithyroid Agent
Antithyroid Agent
"Acenocoumarol may decrease the anticoagulant activities of Potassium Iodide."