Calcitriol: study card

Calcitriol — Active vitamin D (1,25-dihydroxyvitamin D3). Study the mechanism, listed uses and warnings from the US label on one sourced card.

Generic name: Calcitriol
Class: Active vitamin D (1,25-dihydroxyvitamin D3)
Mechanism: Active vitamin D3 that stimulates intestinal calcium transport. Its benefit in renal bone disease appears to result from correcting hypocalcemia and secondary hyperparathyroidism.
Used for: Secondary hyperparathyroidism and associated metabolic bone disease in moderate-to-severe chronic renal failure before dialysis; Hypocalcemia and associated metabolic bone disease in chronic dialysis; Hypocalcemia in postsurgical or idiopathic hypoparathyroidism, or pseudohypoparathyroidism
Common side effects: Hypercalcemia; Weakness; Headache; Nausea
Warnings: Contraindicated in hypercalcemia or vitamin D toxicity; Keep calcium x phosphate product in range
Interactions: Cholestyramine; Phenytoin / phenobarbital; Thiazides

Brand questions use only name pairings verified against the linked product source. Unverified pairings are withheld from these questions; the other study content remains available.

Read the source label ↗

Label date: 20260715 · For learning, not clinical decisions. US label and brand information; always consult the current source.

Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.

Practice

Pronunciation

Calcitriol: kal-si-TRYE-ol

Pronunciation is shown for the US English generic name.

Body system

Endocrine · 27 Drug cards

Compare with related cards

Glimepiride

Same body system: Endocrine

Mechanism: Binds beta-cell sulfonylurea receptors, closing ATP-sensitive K+ channels and stimulating insulin release.

On both cards: Common side effects — Headache; Nausea

Only on the Glimepiride card: Used for — Type 2 diabetes in adults, as an adjunct to diet and exercise · Common side effects — Hypoglycemia; Dizziness; Asthenia · Warnings — Severe hypoglycemia; Hypersensitivity incl. sulfonamide allergy; Hemolytic anemia in G6PD deficiency · Interactions — Oral miconazole (severe hypoglycemia); CYP2C9 inhibitors and inducers; Colesevelam

An item counts as shared only when both cards use the same wording. If a card does not list an item, that is not a statement that the effect never occurs.