This page contains brief details about the drug , it's indication, dosage & administaration, mechanism of action, related brands with strength, warnings and common side effects.

Background and Date of Approval

Vitamin D3 is also known as cholecalciferol which was developed by the U.S. Food And Drug Administration for treating Vitamin D deficiency.

Mechanism of Action of undefined

It works by converting provitamin to vitamin after the intake of this medication. It  helps in maintaining the blood calcium, phosphorus levels and improves bone density thereby maintaining the strong bone health.

Uses of undefined

It belongs to the group of Supplements and is used to treat and prevent vitamin D deficiency. This medication treats various conditions like vitamin D deficiencies and osteoporosis. It helps maintain vitamin D levels in the body, thereby maintaining strong and healthy bones.

undefined Drug administaration and Dosage available

Take the Vitamin D3 as prescribed by your doctor. It should be taken with food because it increases the absorption of calcium. Do not chew, break or crush it. Your physician will decide the correct dosage and duration based on age, body weight, and disease condition. Only stop taking the medicine if your doctor advises you to stop.

Warnings, Precautions and Side Effects of undefined


Report to a physician immediately if you have severe allergic reactions to Vitamin D3. Inform the doctor if you have any condition, such as hypercalciuria, hypercalcemia, and other kidney-related disorders, because it is not recommended in patients with severe kidney disorders as it worsens the condition. Before starting this medication, inform the doctor if you are a pregnant or breastfeeding mother. This medication is not specified for children under 12 years old.


The common side effects that are likely associated with Vitamin D3 are stomach upset, constipation, muscle weakness, increased blood calcium levels, increased calcium levels in urine, nausea, and vomiting. Most of the side effects resolve independently, but if the symptoms prolong for a longer duration, consult the doctor. This medicine should be taken as advised by a doctor because dose alteration depends upon the age and medical condition of the patient.

Side Effects

The common side effects of Vitamin D3 are constipation, nausea, vomiting, stomach upset, and increased thirst. Some serious side effects include muscle weakness, confusion, increased urination, hypercalcemia, kidney damage and mental confusion.

Word Of Advice

If you are considering taking Vitamin D3, it is necessary to consult a healthcare professional to determine if they are not suitable for you and to discuss the appropriate dosage. Additionally, it is important always to follow the dosage instructions provided on the product label or by a healthcare professional and to be aware of the potential side effects and interactions with other medications or supplements. This capsule is not prescribed for children under 12 years of age. Maintaining a healthy lifestyle and eating a balanced diet is important to support overall health and well-being.

Frequently Asked Question


  1. Colecalciferol 1000 IU capsules colecalciferol - medicines. Available at: (Accessed on 20 May 2023).
  2. Satyanarayana U, Chakrapani U, Biochemistry, Chemical constituents of life, 4th edition, 2013, 116-165.
  3. KD Tripathi, Essentials of Medical Pharmacology, Drugs Affecting Calcium Balance, 7th edition, 2013, 337.


The drug information on this page is not a substitute for medical advice. It is meant for educational purposes only. For further details, consult your doctor about your medical condition to know if you can receive this treatment.