NADH disodium salt (Disodium NADH) hydrate is an orally active reduced coenzyme. NADH disodium salt hydrate is a donor of ADP-ribose units in ADP-ribosylaton reactions and a precursor of cyclic ADP-ribose. NADH disodium salt hydrate plays a role as a regenerative electron donor in cellular energy metabolism, including glycolysis, β-oxidation and the tricarboxylic acid (TCA) cycle.