Zumbocal-D3
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Zumbocal-D3 calcium vitamin D3 supplement
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Zumbocal-D3 is a combination pharmaceutical/nutraceutical supplement containing Calcium and Vitamin D3 (Cholecalciferol). Here is a comprehensive overview:
Composition
| Component | Role |
|---|---|
| Calcium (typically as carbonate or citrate) | Mineral essential for bone, teeth, nerve, and muscle function |
| Vitamin D3 (Cholecalciferol) | Enhances intestinal calcium absorption and supports bone mineralization |
Indications
- Osteoporosis – prevention and adjunct treatment, especially in postmenopausal women and men over 50
- Calcium deficiency (hypocalcemia)
- Vitamin D deficiency / insufficiency
- Rickets and osteomalacia
- Adjunct to bisphosphonate or other anti-osteoporotic therapy
- Patients on long-term corticosteroids (corticosteroid-induced osteoporosis prevention)
- Pregnancy and lactation (when dietary intake is inadequate)
Why Vitamin D3 (Not D2)?
According to Osteoporosis Management and Fracture Prevention guidelines (p. 62), Vitamin D3 (cholecalciferol) is preferred because:
- It elevates serum 25(OH)D concentrations more effectively than Vitamin D2 (ergocalciferol)
- It is more reliably measured by commercially available assays
Dosing (General Reference)
- Calcium: Tablets typically provide 250–600 mg of elemental calcium per unit
- Vitamin D3: Commonly available in doses of 400–1000 IU per unit
- Actual doses in Zumbocal-D3 vary by manufacturer/country formulation — refer to the product package insert for the specific elemental calcium and IU content
Recommended daily intakes (general guidelines):
| Population | Calcium (mg/day) | Vitamin D3 (IU/day) |
|---|---|---|
| Adults 19–50 yrs | 1000 | 600–800 |
| Women >50 / Men >70 | 1200 | 800–1000 |
| Postmenopausal osteoporosis | 1200 | 800–2000 |
Mechanism of Action
- Calcium is absorbed in the small intestine and deposited in bone matrix; also involved in neuromuscular transmission and cardiac conduction.
- Vitamin D3 is hydroxylated in the liver to 25(OH)D, then in the kidney to the active form 1,25(OH)₂D (calcitriol), which upregulates calcium-binding proteins in the gut, increasing calcium absorption by 30–40%.
Contraindications
- Hypercalcemia or hypercalciuria
- Nephrolithiasis (calcium-containing kidney stones) — use with caution
- Severe renal impairment (risk of hypercalcemia)
- Hypervitaminosis D
- Sarcoidosis or other granulomatous diseases (increased sensitivity to Vitamin D)
Drug Interactions
| Interaction | Effect |
|---|---|
| Bisphosphonates (alendronate, etc.) | Take calcium ≥2 hours apart (calcium impairs bisphosphonate absorption) |
| Thiazide diuretics | Increased risk of hypercalcemia |
| Digoxin | Hypercalcemia potentiates digoxin toxicity |
| Levothyroxine | Calcium reduces absorption; separate by ≥4 hours |
| Fluoroquinolones / tetracyclines | Calcium chelates antibiotics, reducing their absorption |
| Corticosteroids | Reduce calcium absorption (a key reason supplementation is given) |
Side Effects
- Common: Constipation, bloating, flatulence (more with carbonate form; citrate form is better tolerated)
- Less common: Nausea, hypercalciuria
- Rare (overdose): Hypercalcemia — fatigue, polyuria, kidney stones, nephrocalcinosis, cardiac arrhythmias
Administration Tips
- Calcium carbonate: Take with food (requires gastric acid for absorption)
- Calcium citrate: Can be taken without food (acid-independent absorption; preferred in elderly, achlorhydria, PPI users)
- Divide doses if taking >500 mg elemental calcium/day (absorption efficiency decreases with large single doses)
Note: Zumbocal-D3 is a brand name used in certain markets. Always verify the exact elemental calcium content and IU of D3 on the specific product label, as formulations can vary.
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