Uba, K Codeine-7,8-oxide (4,5 alpha-epoxy-7 beta, 8 beta-epoxy-3-methoxy-17-methyl-morphinan-6 alpha -ol: identification as a metabolite of codeine. [electronic resource] - Chemical & pharmaceutical bulletin Jan 1980 - 356-8 p. digital Publication Type: Journal Article ISSN: 0009-2363 Standard No.: 10.1248/cpb.28.356 doi Subjects--Topical Terms: AnimalsCodeine--metabolismEpoxy Compounds--metabolismIn Vitro TechniquesMicrosomes, Liver--metabolismOxidation-ReductionRats