It is available in doses of 1000 and 2000 units in the form of capsules containing small tablets. The drug helps absorb calcium from the stomach, the function of calcium in the body, to treat or prevent conditions caused by calcium deficiency in the body.

One of the most important functions of calcitriol (active vitamin D) is to balance bone calcium. Therefore, maintaining normal serum calcium levels with vitamin D is essential to ensure skeletal calcium balance and the optimal functioning of several vital processes. Vitamin D also has several important roles in the skin, and studies show that vitamin D dose-dependent effect on cell growth and differentiation. Vitamin D can reduce the risk of skin infections by modulating the production of antibacterial peptides and the response of cytokines.

Vitamin D and its analogues also prevent the growth and differentiation of cancer cells from different tissues.

They have anti-diabetic activity.

Used in MS.


Take in appropriate doses.

Should not be used if you have hypercalcemia and hypovitaminosis D. If the patient develops hypercalcemia while taking it, he should stop taking the medicine. Vitamin D2 (ergocalciferol) should be used with caution in renal disorders, heart disease, kidney stones and atherosclerosis.

This vitamin is secreted in breast milk; Be used with caution during this period. Controlled studies in pregnant women have shown no evidence of fetal risk.

Side effects:

Taking too much vitamin D as a supplement can be dangerous. Children 9 years and older, adults and pregnant and lactating women who consume more than 4,000 units of this vitamin per day may experience Symptoms like:

  • Nausea and vomiting
  • Decreased appetite and weight loss
  • Constipation
  • Weakness
  • Feeling confused
  • Problems with heart rate and rhythm
  • Kidney stones and damage to kidney

How should I take?

Taking vitamin D with large meals helps to better absorb it.