About vitamin d
Fat-soluble vitamin; vitamin D
Used for
- Prevention or treatment of vitamin D deficiency
- Treatment of deficiency-related bone disorders, such as rickets or osteomalacia
Usual adult dose
Dose and interval depend on deficiency severity and clinical protocol; high-dose injection is generally given as a single dose, not routinely repeated.
Usual dose in children
Not routinely used in children; treatment is usually oral and based on age and deficiency.
Common side effects
- High blood calcium
- Nausea or vomiting
- Constipation
- Kidney stones or kidney damage with excess
Important warnings
- Excess can cause serious, prolonged high blood calcium.
- Use caution with kidney disease, kidney stones, or disorders causing high calcium.
- Blood calcium and vitamin D levels may require monitoring.
- Injection should be administered by a healthcare professional.
Pregnancy
Vitamin D is needed in pregnancy, but excessive doses can harm mother and fetus; high-dose injection requires medical supervision.
Breastfeeding
Vitamin D is compatible with breastfeeding at usual doses; excessive maternal dosing can raise infant calcium levels.
Interactions
- Thiazide diuretics can increase risk of high blood calcium.
- Digoxin may increase risk of abnormal heart rhythms if calcium is high.
- Orlistat and bile-acid binders can reduce vitamin D absorption.
- Some seizure medicines and rifampicin can reduce 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 It may be incomplete or out of date.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.