What dosages of potassium iodide (KI) should be taken for specific exposure levels?
Potassium Iodide should be taken at ANY level of exposure to radioactive iodine (I-131). The dosage (see below) is the same at any exposure level.
IOSAT Potassium Iodide
One dose every 24 hours.
Age 18+* ———–130mg daily (One IOSAT tablet)
Age 3 – 18 ———–65mg daily (1/2 IOSAT tablet) – Adolescents approaching adult size should receive the full adult dose (130 mg).
1 month – 3 yrs. —– 32mg daily (1/4 IOSAT tablet)
Birth – 1 month —– 16mg daily (1/8 IOSAT tablet)
ThyroShield Potassium Iodide
| Age/Weight | Dose | Dropper |
|---|---|---|
| Adults over 18 years | 2 mL every day (130 mg) |  |
| Children over 12 years to 18 years who weigh at least 150 lbs. | 2 mL every day (130 mg) | |
| Children over 12 years to 18 years who weigh less than 150 lbs | 1 mL every day (65 mg) |  |
| Children over 3 years to 12 years | 1 mL every day (65 mg) | |
| Children over 1 month to 3 years | 0.5 mL every day (32.5 mg) |  |
| Babies at birth to 1 month | 0.25 mL every day (16.25 mg) |  |
