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What is the DDD for One-Alpha® and Calcitriol?

April 26, 2017calcitriol DDD

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What is the DDD for One-Alpha® and Calcitriol?

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ANSWER The DDD for One-Alpha® as well as calcitriol is 1mcg. BACKGROUND In its guidelines for defined daily dosis (DDD) the WHO states that DDD for alfacalcidol and calcitriol (administration route oral or parenteral) is 1 mcg for both drugs, saying that the bioequivalence is 1:1. REFERENCES Anatomical Therapeutic Chemical (ATC) Index with DDD’s 1997. WHO Collaborating Centre for Drug Statistics Methodology.