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Elemental Calcium



Acute hypocalcaemia, hyperphosphataemia, hypocalcaemia, in hypocalcaemic tetany, osteoporosis prophylaxis, osteoporosis, cardiopulmonary resuscitation, severe hyperkalaemia.

How it works

The skeleton acts as a major mineral storage site for the element and releases Ca2+ ions into the bloodstream under controlled conditions. Circulating calcium is either in the free, ionized form or bound to blood proteins such as serum albumin. Parathyroid hormone (secreted from the parathyroid gland) regulates the resorption of Ca2+ from bone. Calcitonin stimulates incorporation of calcium in bone, although this process is largely independent of calcitonin. The best-absorbed form of calcium from a pill is a calcium salt like carbonate or phosphate. Calcium gluconate and calcium lactate are absorbed well by pregnant women. Seniors absorb calcium lactate, gluconate and citrate better unless they take their calcium supplement with a full breakfast.

Common side effects

Nausea, Abdominal pain, Cardiac arrest, Constipation, Dry mouth, Fainting, Headache, Decreased phosphate level in blood, Decreased blood pressure, Loss of appetite, Sinus bradycardia, Vomiting


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Content on this page was last updated on 17 May, 2016, by Dr. Varun Gupta (MD Pharmacology)