Reaction catalyzed by dihydropyrimidine dehydrogenase (NAD+) (1.3.1.1), dihydropyrimidine dehydrogenase (NADP+) (1.3.1.2)
+
NADPH
+
=
+
NADP+
5-fluorouracil
+
NADPH
+
H+
=
5-fluoro-5,6-dihydrouracil
+
NADP+
