<p>During pregnancy and lactation treatment with this supplements should always be under the direction of a physician.<br />
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During pregnancy and lactation, requirements for calcium and vitamin-D are increased but in deciding on the required supplementation allowances should be made for availability of these agents from other sources.<br />
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Overdoses of vitamin-D have shown teratogenic effects in pregnant animals. Vitamin-D and its metabolites pass into the breast milk.</p>