Invita D3

Colecalciferol, the active ingredient in Invita D3, is a vitamin D presented as an oral tablet for oral use. It treats vitamin D deficiency and supports bone health in both adults and children by improving calcium and phosphate absorption. GNH USA supplies Invita D3 as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Invita D3 (colecalciferol) is used to address conditions related to vitamin D deficiency and bone metabolism. - Vitamin D deficiency: restores adequate serum 25‑hydroxyvitamin D concentrations. - Osteoporosis: supports maintenance of bone mineral density and reduces fracture risk. - Rickets (children): promotes proper bone growth and mineralisation. - Secondary hyperparathyroidism: assists in normalising calcium balance.

Adverse reactions to oral colecalciferol are generally uncommon but can occur.

Common Side Effects: - Hypercalcaemia: elevated blood calcium levels causing nausea or weakness. - Hypercalciuria: increased urinary calcium excretion. - Gastrointestinal discomfort: mild stomach upset or constipation. - Headache: occasional mild headache. - Fatigue: transient tiredness.

Serious or Rare Side Effects: - Severe hypercalcaemia: may lead to cardiac arrhythmia or renal impairment. - Allergic reaction: rash, itching, or swelling of the face, lips, or tongue. - Kidney stones: due to prolonged high calcium levels. - Hypervitaminosis D: excessive vitamin D accumulation causing systemic toxicity.

Before using Invita D3, consider the following safety measures. - Renal impairment: monitor calcium levels closely. - Hypercalcaemia history: avoid high doses without supervision. - Sarcoidosis or granulomatous disease: risk of increased vitamin D activation. - Pregnancy or breastfeeding: consult a healthcare professional before use. - Elderly patients: start with lower doses and adjust as needed. - Store below 25°C: keep in the original container, protect from moisture and direct sunlight.

Colecalciferol may interact with several medicines, altering its effectiveness or safety.

Major Interactions (Avoid): - Thiazide diuretics: increase risk of hypercalcaemia. - Vitamin A excess: may potentiate toxicity. - Lithium: can raise calcium levels.

Moderate Interactions (Monitor Closely): - Anticonvulsants (e.g., phenytoin, phenobarbital): may reduce vitamin D activation. - Glucocorticoids: can impair vitamin D metabolism. - Orlistat: may decrease absorption of fat‑soluble vitamins.