Sigel, C W Identification of trimethoprim 3-oxide as a new urinary metabolite of trimethoprim in man. [electronic resource] - Journal of pharmaceutical sciences Apr 1973 - 694-5 p. digital Publication Type: Journal Article ISSN: 0022-3549 Standard No.: 10.1002/jps.2600620439 doi Subjects--Topical Terms: Anti-Infective Agents--metabolismChromatography, Thin LayerFolic Acid Antagonists--metabolismHumansMaleOxides--urinePyrimidines--metabolismTrimethoprim--metabolism