You should not take cholecalciferol if you have had an allergic reaction to vitamin D, or if you have high levels of calcium or vitamin D in your body, or any condition that makes it hard for your body to absorb nutrients from food (malabsorption).
Before taking this medicine
You should not use cholecalciferol if you have had an allergic reaction to vitamin D, or if you have:
high levels of vitamin D in your body (hypervitaminosis D);
high levels of calcium in your blood (hypercalcemia); or
any condition that makes it hard for your body to absorb nutrients from food (malabsorption).
Tell your doctor if you have ever had:
heart disease;
kidney disease; or
an electrolyte imbalance.
Certain forms of cholecalciferol may contain ingredients you should know about, such as peanut or soybean oil, sugar, aspartame (phenylalanine), or certain food dyes. Ask a doctor before using cholecalciferol if you have allergies, diabetes, or phenylketonuria (PKU).
Too much vitamin D could harm an unborn baby or a nursing baby. Ask a doctor before using  Vitamin D3 if you are pregnant or breast-feeding. Your dose needs may be different during pregnancy or while you are nursing.
Do not give cholecalciferol to a child without medical advice. Your child's dose will depend on age, weight, diet, and other factors.
