Prevention of vit D deficiency Adult 25,000 IU mthly as single dose.
Childn 1-18 yr 25,000 IU as single dose every 6 wk,
0-1 yr 25,000 IU as single dose every 8 wk.
Treatment of vit D deficiency (<25 ng/mL) Adult 50,000 IU wkly as 2-single dose for 6-8 wk, followed by maintenance therapy: 1,400-2,000 IU daily.
Childn 0-18 yr 25,000 IU as single dose once every 2 wk for 6 wk, followed by maintenance therapy: 400-1,000 IU daily.