Invita D3 (Colecalciferol)

Colecalciferol is converted first in the liver to 25‑hydroxyvitamin D and then in the kidney to the active hormone 1,25‑dihydroxyvitamin D. This active form binds to vitamin D receptors, regulating genes that increase intestinal calcium and phosphate uptake, essential for bone mineralisation.

The appropriate dose of Invita D3 is determined by a qualified healthcare professional based on the individual’s serum vitamin D level, age, weight, and clinical condition. Patients should follow the prescriber’s instructions and not self‑adjust the dosage.

Pregnant or breastfeeding individuals should only use Invita D3 if advised by their healthcare provider. Vitamin D is important for fetal development, but dosing must be carefully managed to avoid excess calcium levels that could affect both mother and child.

To order Invita D3, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details, and necessary import documentation.

Invita D3 provides colecalciferol, the same active ingredient found in many vitamin D supplements. Compared with ergocalciferol (vitamin D2), colecalciferol generally has a longer half‑life and may achieve more stable serum levels, making it a preferred choice for long‑term supplementation.

Invita D3 should be stored below 25 °C in its original packaging, protected from moisture and direct sunlight. Keeping the tablets in a cool, dry place helps maintain potency throughout the shelf‑life.

Invita D3 is taken orally, typically with water. It can be taken with or without food, but consistent administration with respect to meals helps maintain stable absorption. Patients should follow the dosing schedule prescribed by their clinician.

The most serious risks include severe hypercalcaemia, which can cause cardiac arrhythmias, kidney stones, or renal impairment, and rare allergic reactions such as anaphylaxis. Prompt medical attention is required if symptoms of high calcium or allergic response appear.

Individuals with known hypersensitivity to colecalciferol, those with uncontrolled hypercalcaemia, or patients with certain granulomatous diseases (e.g., sarcoidosis) should avoid using Invita D3 unless specifically directed by a healthcare professional.