<p><strong>With Medicine</strong>: It has possible interaction with digoxin, antacids containing Calcium, aluminum or magnesium, other Calcium supplements, calcitriol, tetracycline, doxycycline, aminocycline or oxytetracycline etc. So while taking Calcium tablet with any of these drugs consultations of the physicians is needed.<br />
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<strong>With food &amp; others</strong>: The intestinal uptake of Calcium may be reduced by concomitant ingestion of certain foods (e.g. spinach, milk and milk products).</p>