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A Case of Vitamin D Toxicity

Author

Listed:
  • Joseph L Borowit

    (Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University College of Pharmacy, USA)

Abstract

An eighty four year old Caucasian male started taking glucosamine for joint health two years previously. He failed to notice that the glucosamine tablets also contained large doses of cholecalciferol, a precursor of vitamin D. According to the label on the container, two tablets each having five times the recommended daily amount (RDA) were to be taken every day. This was in addition to the vitamin D taken in milk at breakfast, and that in half gram calcium tablets taken twice daily and also vitamin D in a multiple vitamin preparation. All together this added up to 6000 international units (IU) of the vitamin taken each day. The RDA for older people is 800 IU. So he was taking 7.5 times the RDA of vitamin D for over a year. When he discovered the overdose, he stopped taking vitamin D except for milk at breakfast.

Suggested Citation

  • Joseph L Borowit, 2017. "A Case of Vitamin D Toxicity," Novel Approaches in Drug Designing & Development, Juniper Publishers Inc., vol. 3(1), pages 1-2, October.
    • Handle: RePEc:adp:jnapdd:v:3:y:2017:i:1:p:1-2
    DOI: 10.19080/NAPDD.2017.03.555601
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