There is no real contraindication as such but:
Before you take calcium and vitamin D combination, tell your doctor if you have kidney disease, past or present kidney stones, heart disease, circulation problems, a parathyroid disorder, or if you are pregnant or breast-feeding.
Avoid taking any other vitamin or mineral supplements that contain calcium or vitamin D without first talking to your doctor.
Before taking calcium and vitamin D combination, tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.
Your calcium and vitamin D dose may need to be altered if you have any of the conditions above or are taking anything as listed above. Or your doctor may need to monitor you kidney function, etc.
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