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Calcium carbonate/vitamin D3

University of Alberta · FDA-approved active Small molecule

Calcium carbonate provides supplemental calcium to support bone mineralization, while vitamin D3 enhances intestinal calcium absorption and regulates calcium-phosphate homeostasis.

Calcium carbonate provides supplemental calcium to support bone mineralization, while vitamin D3 enhances intestinal calcium absorption and regulates calcium-phosphate homeostasis. Used for Calcium and vitamin D3 deficiency, Osteoporosis prevention and treatment, Hypoparathyroidism.

At a glance

Generic nameCalcium carbonate/vitamin D3
SponsorUniversity of Alberta
Drug classMineral supplement / Vitamin supplement combination
ModalitySmall molecule
Therapeutic areaBone health / Musculoskeletal
PhaseFDA-approved

Mechanism of action

Calcium carbonate serves as a source of elemental calcium necessary for bone formation and maintenance. Vitamin D3 (cholecalciferol) is converted to its active metabolite calcitriol in the kidneys, which increases intestinal absorption of dietary calcium and phosphate, and promotes osteoblast differentiation. Together, these agents work synergistically to maintain serum calcium levels and support skeletal health.

Approved indications

Common side effects

Key clinical trials

Primary sources

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

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