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[Drug-induced hypercalcemia].

Kanji Sato1

  • 1Field of Thyroid and Parathyroid Disease, Division of Internal Medicine, Graduate School of Medicine, Tokyo Women's Medical University.

Clinical Calcium
|January 7, 2006
PubMed
Summary
This summary is machine-generated.

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Drug-induced hypercalcemia results from increased calcium in the blood due to various causes. Short-acting vitamin D analogs are used, but topical application for psoriasis can lead to severe hypercalcemia.

Area of Science:

  • Endocrinology
  • Pharmacology
  • Dermatology

Context:

  • Drug-induced hypercalcemia is a significant clinical concern.
  • It arises from mechanisms including increased bone resorption, gastrointestinal absorption, or renal reabsorption of calcium.
  • Vitamin D intoxication and thiazide diuretics are common culprits.

Purpose:

  • To review the causes and management of drug-induced hypercalcemia.
  • To discuss the clinical use of vitamin D analogs.
  • To highlight the risk of severe hypercalcemia with topical vitamin D analogs in psoriasis.

Summary:

  • Hypercalcemia mechanisms involve bone resorption (e.g., vitamin D intoxication), GI absorption (e.g., vitamin D, calcium intake), and renal reabsorption (e.g., thiazides).
  • Long-lasting hypercalcemia from vitamin D intoxication necessitates the use of short-acting analogs like 1alpha-OHD(3).

Related Experiment Videos

  • Newer vitamin D analogs (tacalcitol, calcipotriol) with keratinocyte activity pose a risk of severe hypercalcemia when applied liberally to psoriatic skin lesions due to absorption.

    • Impact:

    • Understanding these mechanisms is crucial for preventing and managing hypercalcemia.
    • Clinical use of short-acting vitamin D analogs offers a safer alternative for certain conditions.
    • Awareness of absorption risks with topical vitamin D analogs in psoriasis is vital for patient safety.