<p><strong>Use in children</strong>: Calcium carbonate has been extensively studied in children and infants with chronic renal failure and is both safe and effective.<br />
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<strong>Use in elderly</strong>: In case of elderly patients with renal failure when calcium carbonate is taken constipation may be troublesome one for this group. For this reason, monitoring of serum calcium and phosphate is of course indicated for elderly patients.</p>