Europe — EMA
Ibuvit D3 (Colecalciferol)
GNH USA supplies Ibuvit D3 (Colecalciferol), a vitamin D supplement for treating deficiency and supporting bone health. Request a quote for global supply.
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What is Colecalciferol?
Colecalciferol, the active ingredient in Ibuvit D3, is a vitamin D presented as an oral supplement for oral use. It is used to address vitamin D deficiency and support bone health in individuals with insufficient dietary intake or limited sun exposure.
GNH USA supplies Ibuvit D3 as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.
What is Colecalciferol used for?
Ibuvit D3 (colecalciferol) is used to correct deficiencies in the vitamin D pathway and support calcium metabolism.
- Vitamin D deficiency: restores adequate serum 25‑hydroxyvitamin D levels. - Osteoporosis or low bone mass: supports bone mineralization and reduces fracture risk. - Hypocalcemia: helps maintain normal calcium and phosphate concentrations in the blood.
What are the side effects of Colecalciferol?
Common Side Effects: - Nausea: mild stomach upset may occur. - Constipation: occasional difficulty passing stool. - Dry mouth: reduced salivation reported. - Headache: transient mild headache.
Serious or Rare Side Effects: - Hypercalcemia: elevated blood calcium with symptoms such as weakness or arrhythmia. - Kidney stones: calcium deposition in the urinary tract. - Severe allergic reaction: rash, swelling, or anaphylaxis. - Cardiac arrhythmia: irregular heartbeat in cases of extreme toxicity.
What precautions apply to Colecalciferol?
Before initiating therapy, consider the following precautions: - Baseline assessment: evaluate serum calcium and 25‑hydroxyvitamin D levels. - Monitoring: watch for signs of hypercalcemia during treatment. - Renal impairment: adjust dose or frequency in patients with reduced kidney function. - Concomitant calcium: avoid high‑dose calcium supplements unless medically indicated. - Store at ambient temperature: keep in the original container, protect from moisture and light.
What does Colecalciferol interact with?
Colecalciferol may interact with several medicines. Review the following:
Major Interactions (Avoid): - Thiazide diuretics: increase risk of hypercalcemia. - Excess vitamin A: synergistic hypercalcemia potential. - Aluminum‑containing antacids: reduce vitamin D absorption. - High‑dose calcium supplements: may precipitate hypercalcemia.
Moderate Interactions (Monitor Closely): - Corticosteroids: may diminish vitamin D effectiveness. - Orlistat: can decrease absorption of fat‑soluble vitamins. - Phenobarbital and phenytoin: accelerate vitamin D metabolism, possibly lowering efficacy.



