About calcium + vitamin d
Calcium and vitamin D supplement
Used for
- Prevention and treatment of calcium and vitamin D deficiency
- Support for bone health, including in osteoporosis care
Usual adult dose
Commonly one tablet twice daily with food; dosing depends on dietary intake and clinical need.
Usual dose in children
Not routinely used in children without clinician-directed dosing.
Common side effects
- Constipation
- Bloating or gas
- Nausea
Important warnings
- Excess calcium or vitamin D can cause high blood calcium and kidney problems.
- Use caution with kidney disease, kidney stones, or high blood calcium.
- Separate from certain medicines, including thyroid medicine and some antibiotics.
Pregnancy
Usually compatible at recommended doses; total intake from diet and supplements matters.
Breastfeeding
Usually compatible at recommended doses; total intake from diet and supplements matters.
Interactions
- Levothyroxine: calcium can reduce absorption; separate doses.
- Tetracycline and quinolone antibiotics: calcium can reduce absorption.
- Bisphosphonates: calcium can reduce absorption; separate doses.
- Thiazide diuretics may increase risk of high blood calcium.
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 It may be incomplete or out of date.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.