Pregnancy: Safe use of cholecalciferol during pregnancy has not been established. But it was found that pregnancy with hypercalcemia for a long time, the infants may be aortic valvular stenosis, retinophathy, and mental and/or physical retardation. Hypercalcemia during pregnancy causes low parathyroid hormone concentrations in the neonate resulting in hypocalcemia, tetany, and seizures.
Lactation: Safe use of cholecalciferol during lactation has not been established. Large doses of vitamin D analogs should not be administered to nursing women.
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