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Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women.
Drug which has been taken by a large number of breastfeeding mothers without any observed increase in adverse effects in the infant. Controlled studies in breastfeeding women fail to demonstrate a risk to the infant and the possibility of harm to the breastfeeding infant is remote; or the product is not orally bioavailable in an infant.
Typical usage: Calcium supplements are usually required where dietary calcium intake is deficient. This dietary requirement varies with age and is relatively greater in childhood, pregnancy and lactation due to an increased demand. Calcium supplement is also required in paused menopausal women and persons with osteopenia specially after the age of 60 years.
Side Effects: Hypotension, sinus bradycardia, cardiac arrest, thirst, headache, nausea, vomiting, anorexia, constipation, abdominal pain, dry mouth, syncope, hypophosphatemia.
Drug Interaction: Calcium is known to interact with other drugs like alendronate (Na), calciferol, digitoxin, digoxin, etidronate (disodium), fluoride, iron salts, risedronate (Na), sodium fluoride, strontium ranelate, tetracycline (HCl), verapamil (HCl). Always consult your physician for the change of dose regimen or an alternative drug of choice that may strictly be required.
Mechanism Of Action: 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.