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My doctor prescribed 50,000 units of D2 for my Vit. D deficiency (9.1 value on blood test). I understand that D3 (Cholecalciferol) is preferable to D2 (Ergocaciferol), but my pharmacy said they do not carry D3 in the 50,000 dosage. Would it be preferable to take several 5,000 units of D3 which is available over the counter to the 50,000 units of D2?

Asked by  pabdc64438800 on June 26, 2015

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