ergocalciferol

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ergocalciferol

 [er″go-kal-sif´er-ol]
vitamin D2; a sterol occurring naturally in fungi and some fish oils or synthesized from ergosterol, and similar to cholecalciferol in activity and metabolism; it is administered orally or added to food (e.g., milk) as a dietary source of vitamin D. It is also used in treatment of hypocalcemia, hypophosphatemia, rickets, and osteodystrophy associated with various medical conditions including chronic renal failure and hypoparathyroidism, administered orally, intramuscularly, or intravenously.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

er·go·cal·cif·er·ol

(er'gō-kal-sif'ĕr-ol),
Activated ergosterol, the vitamin D of plant origin; it arises from ultraviolet irradiation of ergosterol, which is cleaved at the 9,10 bond and develops a double bond between C-10 and C-19; used in prophylaxis and treatment of vitamin D deficiency.
Farlex Partner Medical Dictionary © Farlex 2012

ergocalciferol

(ûr′gō-kăl-sĭf′ə-rôl′, -rōl′)
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

er·go·cal·cif·er·ol

(ĕr'gō-kal-sif'ĕr-ol)
Activated ergosterol, the vitamin D of plant origin; it arises from ultraviolet irradiation of ergosterol; used in prophylaxis and treatment of vitamin D deficiency.
Synonym(s): calciferol, vitamin D2.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

ergocalciferol

Vitamin D2. This is produced in the body by the action of ultraviolet light on ergosterol. Vitamin D is necessary for the normal mineralization of bone. Deficiency leads to RICKETS in growing children and bone softening (OSTEOMALACIA) in adults. The drug is on the WHO official list.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

er·go·cal·cif·er·ol

(ĕr'gō-kal-sif'ĕr-ol)
Activated ergosterol, the vitamin D of plant origin; used in prophylaxis and treatment of vitamin D deficiency.
Synonym(s): calciferol, vitamin D2.
Medical Dictionary for the Dental Professions © Farlex 2012