Calcium Citrate

Calcium citrate is a highly bioavailable calcium supplement. Unlike calcium carbonate, it does not require stomach acid for optimal absorption, meaning it can be taken with or without food and is well-suited for individuals taking acid-reducing medications or older adults with decreased stomach acid.

Dosage by Body Weight

Adult daily allowance is typically 1000 mg to 1200 mg of elemental calcium. It is best absorbed when taken in divided doses of 500 mg or less at a time. Pediatric dosing should be carefully calculated based on age, diet, and clinical need under professional medical supervision.

  1. Body Weight
    Below 5 kg
    Dose
    Not routine
    Frequency
    Use only if prescribed
    Tracking Notes
    Infants typically receive sufficient calcium from breast milk or formula. Do not administer supplements unless explicitly directed by a pediatrician.
  2. Body Weight
    5-7 kg
    Dose
    200 mg of elemental calcium daily (total combined diet + supplement limit)
    Frequency
    Once daily
    Tracking Notes
    Usually met via diet. Supplements should only be introduced under pediatric supervision.
  3. Body Weight
    8-10 kg
    Dose
    260 mg of elemental calcium daily (total combined diet + supplement limit)
    Frequency
    Once daily
    Tracking Notes
    Consult a healthcare provider to assess dietary intake before administering supplemental calcium.
  4. Body Weight
    11-15 kg
    Dose
    200 mg to 500 mg of elemental calcium daily
    Frequency
    Once or twice daily
    Tracking Notes
    The RDA for children aged 1 to 3 is 700 mg of total calcium daily. Adjust supplemental dose based on dietary intake.
  5. Body Weight
    16-20 kg
    Dose
    300 mg to 600 mg of elemental calcium daily
    Frequency
    Once or twice daily
    Tracking Notes
    The RDA for children aged 4 to 8 is 1000 mg of total calcium daily. Supplementation should account for dietary sources.

Formulation

TabletCapsuleOral Suspension

Purpose

Used to prevent or treat low blood calcium levels in people who do not get enough calcium from their diets. It is commonly used to support bone health and treat or prevent conditions like osteoporosis, osteomalacia, rickets, and hypoparathyroidism.

Generic Name

Calcium Citrate

Branded Drug Names

Calcium Citrate is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:

Scheduled Drug

No. This medicine is generally not treated as a scheduled/prescription-only drug in common consumer references, but local rules may vary.

Alternatives

Disclaimer: This information is for educational purposes only. WHO references and weight bands are simplified for tracking and must not replace medical advice. Always consult with a healthcare professional before starting or changing any medication.