title: Quinine-N-oxide--a urinary component after the consumption of quinine beverages.
abstract: After the consumption of quinine-containing beverages, quinine-N-oxide could be identified in the urine mass spectrometrically. Consequently in the analysis of physiological fluids for drugs not only the drugs themselves must be considered but also their metabolites.
mesh_terms: D001628:Beverages; D002253:Carbonated Beverages; D003497:Cyclic N-Oxides; D006801:Humans; D013058:Mass Spectrometry; D011803:Quinine / Q000652:urine*
chemical_list: D003497:Cyclic N-Oxides; D011803:Quinine