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Treatment Doses of Vitamin D for Nutritional Rickets
| Age | Daily Dose for 90 Days, IU | Single Dose, IU | Maintenance Daily Dose, IU |
|---|---|---|---|
| <3 mo | 2000 | N/A | 400 |
| 3–12 mo | 2000 | 50 000 | 400 |
| >12 mo to 12 y | 3000–6000 | 150 000 | 600 |
| >12 y | 6000 | 300 000 | 600 |
Abbreviation: N/A, not available. Reassess response to treatment after 3 months as further treatment may be required. Ensure a daily calcium intake of at least 500 mg. For conversion from IU to μg, divide by 40.
