Summary of suggested treatment of Vitamin D deficiency

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  TREATMENT DOSES MAINTENANCE
Age Vitamin D treatment dose (12 weeks)* Calcium if required (4 weeks)** Alternative single high dose treatment  vitamin D (oral/IM) Vitamin D maintenance (over-the-counter)
< 3 months 2000u/day None N/A 400 units
3 to 12 months 2000 to 2400u/day 500mg/day 50,000u 400 units
1 to 12 years 3000 to 6400u/day 500mg to 1000mg/day 150,000u 600 units
Over 12 years 6000 to 6400u/day 1000mg to 1500mg/day 300,000u 600 to 800 units

* Range of doses given are to allow for the use of liquid and solid dose forms. Round up or down the dose as appropriate.
** Only give calcium if the child has low calcium or phosphate, elevated alkaline phoshate or low calcium containing diet.