Potassium Iodide for Children and Infants

Children are the most vulnerable population when it comes to radioactive iodine exposure. Their thyroid glands are smaller and actively growing, absorbing iodine at a higher rate than adults. This makes KI protection especially critical — and proper dosing especially important.

Why Children Need KI Most

• Smaller thyroid = higher concentration of radioactive iodine per gram of tissue
• Rapid cell division = more DNA susceptible to radiation damage
• Longer remaining lifespan = more time for radiation-induced cancer to develop
• CDC data: majority of Chernobyl thyroid cancer cases were in children under 18 at time of exposure

Dosing by Age

• Children 3-12: 65mg — one ThyroSafe 65mg tablet (simplest) or half a 130mg tablet
• Children 1mo-3yr: 32mg — half a 65mg tablet or quarter of a 130mg tablet
• Neonates (birth-1mo): 16mg — quarter of a 65mg tablet. Single dose only (repeat dosing risks hypothyroidism)

Best Products for Families with Children

ThyroSafe 65mg is our top recommendation for families with children. The 65mg tablet matches the exact pediatric dose for ages 3-12 with no splitting needed. For infants, liquid KI (ThyroShield oral solution) with a calibrated dropper provides the most precise dosing possible.

Try our Family KI Planner to calculate exactly what products and quantities your household needs.