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Calcidiol

Also known as: Calcifediol Calcifidiol

Description

Vitamin D3 must undergo a two-step metabolic process to be active; the first step occurs in the microsomal fraction of the liver where Vitamin D is hydroxylated at position 25 (25-hydroxycholecalciferol or calcifediol); the second step takes place in the kidney where 1,25-dihydroxycholecalciferol or calcitriol is formed due to the activity of enzyme 25-hydroxycholecalciferol 1-hydroxylase. Vitamin D increases absorption of calcium and phosphorus in the intestine and improves normal bone formation and mineralization.

ATC Classification

Code
Title
Category
A11CC06
Calcifediol
A Alimentary tract and metabolism → A11 Vitamins → A11C Vitamin A and D, incl. combinations of the two → A11CC Vitamin D and analogues
H05BX05
Calcifediol
H Systemic hormonal preparations, excl. Sex hormones and insulins → H05 Calcium homeostasis → H05B Anti-parathyroid agents → H05BX Other anti-parathyroid agents

Trade names

Trade name
Countries

France

United States