Calcium Citrate

Calcium Citrate Uses, Dosage, Side Effects, Food Interaction and all others data.

Calcium Citrate is a salt typically used as a source of calcium in a variety of over the counter supplements.

Increases plasma calcium levels leading to a decrease in calcium flux and increase in calcium deposition into bone

Calcium Citrate
Uses
Dosage
Side Effect
Precautions
Interactions
Uses during Pregnancy
Uses during Breastfeeding
Accute Overdose
Food Interaction
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Interaction With other Medicine
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Trade Name	Calcium Citrate
Generic	Calcium citrate
Calcium citrate Other Names	tricalcium citrate
Weight	250mgelementalcalcium, 950mg(200mgelementalcalcium
Type	Oral tablet
Formula	C₁₂H₁₀Ca₃O₁₄
Weight	Average: 498.432 Monoisotopic: 497.8948277
Protein binding	About 46.4% of calcium is bound to plasma proteins .
Groups	Approved, Investigational
Therapeutic Class
Manufacturer
Available Country	United States
Last Updated:	September 19, 2023 at 7:00 am

Uses

Calcium Citrate is an ingredient found in a variety of supplements and vitamins.

For use as an over the counter calcium supplement.

Calcium Citrate is also used to associated treatment for these conditions: Calcium Deficiency, Deficiency of Vitamin D3, Deficiency, Vitamin D, Folate deficiency, Hypocalcemia, Iron Deficiency (ID), Osteoporosis

How Calcium Citrate works

Calcium Citrate increases plasma calcium levels. This reduces calcium flux from osteocyte activity by reducing the secretion of parathyroid hormone (PTH) . Calcium does this by stimulating a G-protein coupled calcium receptor on the surface of parathyroid cells. The reduction in calcium flux increases the amount of calcium deposited in bone resulting in an increase in bone mineral density. The reduction in PTH secretion also reduces the amount of vitamin D metabolized to its active form, calcidiol. Since calcidiol increases the expression of calcium dependent ATPases and transient receptor potential cation channel subfamily V member 6 (TRPV6) both of which are involved in calcium uptake from the gut, a reduction in calcidiol results in less calcium absorption. Additionally, TRPV5, the channel responsible for calcium reabsorption in the kidney, is downregulated when PTH secretion is reduced thus increasing calcium excretion via the kidneys. Another hormone, calitonin, is likely involved in the reduction of bone resorption during periods of high plasma calcium.

Toxicity

Patients taking more than 4g of calcium a day are at risk of hypercalcemia and metabolic alkalosis . Chronic intake of calcium supplements is associated with adverse gastrointestinal symptoms such as constipation and flatulence .