M. E. Wieder, P.R. Brown, L. Grainger and P. Teale Identification of etamiphylline and metabolites in equine plasma and urine by accurate mass and liquid chromatography/tandem mass spectrometry Drug Testing and Analysis 2
Etamiphylline camsylate was administered intravenously to two horses. Etamiphylline, desethyletamiphylline, N1/3-desmethyletamiphylline and N-desethyl-N-desmethyletamipylline were identified in urine and plasma. The identity of the parent drug and metabolites was confirmed using a linear ion trap mass spectrometer and accurate mass analysis on an orbitrap mass spectrometer.
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