About vitamin d
Fat-soluble vitamin; vitamin D supplement
Used for
- Treats or prevents vitamin D deficiency
- Supports calcium absorption and bone health
Usual adult dose
Deficiency treatment is individualized; maintenance is often 800–2,000 IU daily. High-dose treatment requires clinician supervision.
Usual dose in children
Dosing depends on age and deficiency; high-dose treatment requires clinician supervision.
Common side effects
- High blood calcium
- Nausea or vomiting
- Constipation
- Kidney stones with prolonged excess
Important warnings
- Excessive or prolonged use can cause vitamin D toxicity and kidney damage.
- Use cautiously with kidney disease, high calcium, or certain parathyroid disorders.
- This is a high-strength product, not typically for routine unsupervised daily use.
Pregnancy
Vitamin D is needed during pregnancy; high doses should be used only under medical supervision.
Breastfeeding
Vitamin D is compatible with breastfeeding at usual doses; high doses require medical supervision.
Interactions
- Thiazide diuretics may increase risk of high blood calcium.
- Digoxin: high calcium can increase abnormal heart rhythm risk.
- Orlistat and bile-acid binders can reduce vitamin D absorption.
- Some seizure medicines and steroids can lower vitamin D levels.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.