FAD reductase (NAD(P)H) (, GTNG_3158 (gene)) is an enzyme with systematic name FADH<sub>2</sub>:NAD(P)<sup>+</sup> oxidoreductase. This enzyme catalyses the following chemical reaction
This enzyme is isolated from the bacterium Geobacillus thermodenitrificans. It takes part in degradation tryptophan.