Drug reference

ergocalciferol

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Drug class

Musculoskeletal (Vit D Preparations)

Mechanism of action

Stimulates calcium and phosphate absorption from small intestine; stimulates phosphate resorption at renal tubule; stimulates secretion of calcium into blood from bone

Common side effects

  • Arrhythmias
  • Dry mouth
  • Constipation
  • Headache
  • Confusion
  • Hypercalcemia

Contraindications

  • Hypercalcemia Hypervitaminosis D Ergocalciferol (oral): Gastrointestinal (GI), liver, or biliary disease associated with malabsorption of vitamin D analogues Documented hypersensitivity with drugs that could have allergenic crossreactivity with ergocalceferol

Related conditions

Frequently asked questions

What drug class is ergocalciferol?

ergocalciferol belongs to: Musculoskeletal.

How does ergocalciferol work?

Stimulates calcium and phosphate absorption from small intestine; stimulates phosphate resorption at renal tubule; stimulates secretion of calcium into blood from bone

What are the common side effects of ergocalciferol?

Arrhythmias, Dry mouth, Constipation, Headache, Confusion, Hypercalcemia

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug reference