Potassium Iodide Dosage Guide by Age
The correct potassium iodide dose depends on age — not weight. Below are the official FDA/CDC dosing guidelines.
| Age Group | Dose | 130mg Tablets | 65mg Tablets | Liquid (65mg/mL) |
|---|---|---|---|---|
| Adults 18-40 | 130 mg | 1 | 2 | 2 mL |
| Adults 40+ (>500 cGy) | 130 mg | 1 | 2 | 2 mL |
| Pregnant/Breastfeeding | 130 mg | 1 | 2 | 2 mL |
| Adolescents 12-18 (≥150 lbs) | 130 mg | 1 | 2 | 2 mL |
| Adolescents 12-18 (<150 lbs) | 65 mg | ½ | 1 | 1 mL |
| Children 3-12 | 65 mg | ½ | 1 | 1 mL |
| Children 1 month-3 years | 32 mg | ¼ | ½ | 0.5 mL |
| Neonates (birth-1 month) | 16 mg | ⅛ | ¼ | 0.25 mL |
How to Prepare Liquid KI from Tablets (FDA Method)
- Place one 130mg tablet (or two 65mg tablets) into a small bowl
- Add 4 teaspoons (20 mL) of water and let soften for 2-3 minutes
- Crush tablet completely and stir until dissolved
- Add 4 teaspoons (20 mL) of a flavored drink (raspberry syrup is best)
- The resulting mixture contains approximately 16mg per teaspoon
- Use within 7 days if stored covered at room temperature
Taste-Masking Agents (FDA Tested)
| Masking Agent | Palatability | Stability (7 days) |
|---|---|---|
| Raspberry syrup | Excellent | >97% |
| Chocolate milk | Excellent | >97% |
| Orange juice | Good | >97% |
| Flat cola | Acceptable | >97% |
| Infant formula | Neutral | >97% |
Use our dosage calculator to determine exact tablet counts for your entire family.