Last reviewed · How we verify

Vitamin D (Cholecalciferol )

McGill University Health Centre/Research Institute of the McGill University Health Centre · FDA-approved active Small molecule

Vitamin D (cholecalciferol) is converted in the body to its active form, calcitriol, which regulates calcium and phosphate homeostasis and modulates immune function.

Vitamin D (cholecalciferol) is converted in the body to its active form, calcitriol, which regulates calcium and phosphate homeostasis and modulates immune function. Used for Vitamin D deficiency, Hypocalcemia, Hypoparathyroidism.

At a glance

Generic nameVitamin D (Cholecalciferol )
Also known asDIN number 00821772, (Cholecalciferol ), osavidin
SponsorMcGill University Health Centre/Research Institute of the McGill University Health Centre
Drug classVitamin/Steroid hormone
TargetVitamin D receptor (VDR)
ModalitySmall molecule
Therapeutic areaEndocrinology, Immunology, Bone Health
PhaseFDA-approved

Mechanism of action

Cholecalciferol is a fat-soluble vitamin that undergoes hydroxylation in the liver to 25-hydroxyvitamin D, then in the kidneys to the active hormone 1,25-dihydroxyvitamin D (calcitriol). Calcitriol binds to the vitamin D receptor (VDR) in target tissues to regulate intestinal calcium absorption, bone mineralization, and immune cell differentiation and function.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape: