| Table 5: | ||
|
Vitamin
D Preparations
|
||
|
Vitamin
D Preparation
|
Half-Life
|
Form
of Therapy
|
| 1,25-Dihydroxycholecalciferol Rocaltrol Calcijex |
2-6
h
|
Capsule
0.25, 0.5 µg Injection 1 µg/mL 2 µg/mL |
| 25-hydroxycholecalciferol Calderol (requires activation in the kidneys) Ergocalciferol (Vitamin D2) Calciferol Drisdol |
12-22
d
Long (months) |
Capsule
20, 50 µg Capsule 1.25 mg-50000 IU Solution 12.5 mg/mL Drops 200 µg/mL-8000 IU |
| Cholecalciferol
(Vitamin D3) Delta-D |
Long
(months)
|
Tablet 400, 1000 IU |
|
Copyright
2004 The Cleveland Clinic Foundation
|
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