Ingredient

Cholecalciferol

Cholecalciferol is a form of vitamin D that helps support bone health.

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57
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49
Combination
8
Prescription medication
54
OTC medication
3

MFDS ingredient code M040594

What does it do?

Cholecalciferol is a fat-soluble vitamin classified as vitamin D3. It is primarily used to strengthen bones by promoting the absorption of calcium and phosphorus. In pharmaceuticals, it is used to supplement vitamin D deficiency or to prevent osteoporosis.

Cholecalciferol is converted into active vitamin D in the body, increasing the absorption of calcium and phosphorus in the intestines. As a result, sufficient minerals are supplied to the bones, strengthening the skeleton. It also plays a role in the bone remodeling process, maintaining bone density.

Commonly used for

Approved uses differ by product. Check each product's information for its actual use.

Good to know

Cholecalciferol is more effectively converted to active form in the body compared to vitamin D2 (ergocalciferol). This makes it the preferred form as a vitamin D supplement. Additionally, its fat-soluble characteristic allows for storage in the body.

Medicines containing this ingredient

Even with the same ingredient, strength, dosage form and how it is taken can differ.

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57 total

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Even with the same ingredient, dosage and approved uses can differ by strength, dosage form and combined ingredients. Check each product's information before taking it.

Combined ingredients

Ingredients used together with this ingredient in combination products.

Questions about this ingredient

  • QI take vitamin D supplements; what should I do if it's also in another medication?

    Cholecalciferol is a fat-soluble vitamin that can be stored in the body. If multiple products contain the same ingredient, the intake amounts can overlap, so it is advisable to show your supplements and medications to a pharmacist for confirmation of any duplications.

    Answers 1 · 2026.09.14

For anything that needs medical judgment, consult a doctor or pharmacist.

SourceKorea Ministry of Food and Drug Safety (Drug Safety Korea)

This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.