NCIt definition : The hydrochloride salt form of pyridoxine, a water-soluble vitamin B. Pyridoxine hydrochloride
is converted into the active form, pyridoxal 5'-phosphate (PLP), an essential cofactor
in many enzymatic activities including synthesis of amino acids, neurotransmitters,
and sphingolipids. This vitamin is essential to red blood cell, nervous system, and
immune systems functions and helps maintain normal blood glucose levels.;