Drug Interactions
Vitamin D supplements may interact with several types of medications. Corticosteroids can reduce calcium absorption, which results in impaired vitamin D metabolism.[6] Since vitamin D is fat soluble, orlistat and cholestyramine can reduce its absorption and should be taken several hours apart from it.[6] Phenobarbital and phenytoin increase the hepatic metabolism of vitamin D to inactive compounds and decrease calcium absorption, which also impairs vitamin D metabolism.[6]
US Pharmacist © 2010
Jobson Publishing
Cite this: Vitamin D Supplementation: An Update - Medscape - Oct 01, 2010.
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