Drug information provided by: Merative, Micromedex®
Along with its needed effects, a dietary supplement may cause some unwanted effects. Alfacalcidol, calcifediol, calcitriol, dihydrotachysterol, and ergocalciferol do not usually cause any side effects when taken as directed. However, taking large amounts over a period of time may cause some unwanted effects that can be serious.
Check with your doctor immediately if any of the following side effects occur:
Check with your doctor as soon as possible if any of the following side effects occur:
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Portions of this document last updated: Sept. 01, 2023
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