Stabilized active forms of Vitamin D3.

摘要

A preparation containing an active form of vitamin D<Sub>3</Sub> which is stabilized by incorporation of an amino acid that is neither one containing a sulfur atom or an acid amino group in its structure, nor an acidic amino acid, nor a salt of a basic amino acid is disclosed. Examples of said amino acids that may be used as stabilizers of the active form of vitamin D<Sub>3</Sub> include neutral amino acids such as alanine, valine, proline, phenylalanine, tryptophan, leucine, isoleucine, glycine and serine, and basic amino acids such as lysine, arginine and histidine.