<p>Before taking Calcium Orotate, precaution is needed if the patient is allergic to Calcium Orotate. This drug may contain inactive ingredients, which can cause allergic reactions or other problems. Precaution is needed before using this drug in kidney disease, kidney stones, little or no stomach acid (achlorhydria), heart disease, disease of the pancreas, sarcoidosis difficulty absorbing nutrition from food (malabsorption syndrome).</p>