Calcium Citrate
Calcium Citrate Anhydrous is a supplemental form of calcium used to prevent or treat calcium deficiency when dietary intake is insufficient. It is commonly prescribed for individuals at risk of osteoporosis, those with certain malabsorption conditions, or patients requiring additional calcium for bone health maintenance.
Calcium Citrate Anhydrous is a calcium supplement used to address calcium deficiency and support bone health.
Key facts at a glance
- RxNorm
- 2106283
- Generic
- Calcium Citrate Anhydrous
- Class
- pin-variant
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Used to prevent and treat calcium deficiency, support bone health in osteoporosis prevention, and address calcium needs in conditions such as hypoparathyroidism, renal osteodystrophy, and osteomalacia. Often recommended for individuals with inadequate dietary calcium intake or difficulty absorbing calcium from other sources.
Provides elemental calcium, an essential mineral needed for bone formation, muscle contraction, nerve transmission, and various cellular functions. Calcium citrate is absorbed more efficiently than calcium carbonate and does not require stomach acid for optimal absorption, making it suitable for patients on acid-reducing medications.
Should be taken as directed, typically with adequate water. May interact with certain antibiotics, thyroid medications, and iron supplements if taken simultaneously. Splitting doses throughout the day improves absorption. Patients with hypercalcemia, kidney stones, or certain parathyroid disorders should use with caution under medical supervision.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy