Alfacalcidol is a form of vitamin D. It is converted rapidly in the liver to the active metabolite, 1,25-dihydroxycholecalciferol (calcitriol).

Used for:
* Hypocalcaemia (low blood calcium level) in the neonate.
* Low parathyroid function (hypoparathyroidism)
* Over activity of the parathyroid glands (hyperparathyroidism)
* Softening of the bones when there is lack of Vitamin D in the body (osteomalacia)
* The correction of abnormalities of calcium and phosphate metabolism in renal osteodystrophy.

The following are some of the side effects that are known to be associated with this medicine. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.

* Thirst
* Sweating
* Disturbances of the gut such as diarrhoea, constipation, nausea, vomiting or abdominal pain
* High blood calcium level (hypercalcaemia)
* High blood phosphate content (hyperphosphateaemia)
* Loss of appetite

The side effects listed above may not include all of the side effects reported by the drug's manufacturer.