Vitamin B6 (Pyridoxine) is a water soluble B complex vitamin, it includes three vitamins, pyridoxine, pyridoxal, pyridoxamine and their phosphorylated derivatives. Pyridoxal phosphate (PLP) is the coenzyme for a variety of enzymes like aminotransferases, decarboxylases, and side chain cleaving enzymes. Vitamin B6 is needed for important pathways like gluconeogenesis, synthesis of neurotransmitters like serotonin, dopamine, taurine, -aminobutyric acid, norepinephrine and histamine. Along with folic acid, vitamin B12 and riboflavin, vitamin B6 is needed for the metabolism of homocysteine. It is also involved in immune system function, nucleic acid metabolism and blood sugar regulation.