Case Report

The Lack of Vitamin D Toxicity with Megadose of Daily Ergocalciferol (D2) Therapy: A Case Report and Literature Review

Abstract:The maximum daily dose of vitamin D currently recommended is 2000 IU. Ergocalciferol (D2) 50,000 IU orally weekly for 8–12 weeks is often used to treat vitamin D deficient patients (25(OH) vitamin D <20 ng/mL). The lack of vitamin D toxicity after massive doses of ergocalciferol has yet to be…