125-dihydroxycholecalciferol

125-dihydroxycholecalciferol: the most active metabolite of cholecalciferol, synthesized in the kidney from 25-hydroxycholecalciferol; it increases intestinal absorption of calcium and phosphate, enhances bone resorption, and prevents rickets. Because these activities occur at sites distant from its site of synthesis, it is considered a hormone. Called also calcitriol and 1,25-dihydroxyvitamin D₃.

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125-dihydroxyvitamin D — 1,25 di·hy·droxy·vi·ta·min D (di″hi drok″se viґtə min) either 1,25 dihydroxycholecalciferol, the corresponding dihydroxy derivative of ergocalciferol, or both collectively. See also table at cholecalciferol … Medical dictionary
125-dihydroxyvitamin D3 — 1,25 dihydroxycholecalciferol … Medical dictionary
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