Journal of analytical toxicology, 19(2), 84-86 (1995-03-01)
A metabolite of labetalol that is responsible for previous reports of false-positive assays for amphetamines by thin-layer chromatography and immunoassay has been identified. The compound, 3-amino-1-phenylbutane (APB), an oxidative metabolite of labetalol, was initially identified in a patient's urine by
Drug metabolism and disposition: the biological fate of chemicals, 21(2), 284-292 (1993-03-01)
Labetalol causes significant maternal and fetal metabolic effects in pregnant sheep (Yeleswaram et al., J. Pharmacol. Exp. Ther. 262, 683-691 (1992)). This study was undertaken to investigate the contribution of skeletal muscles in the development of metabolic acidosis induced by
Research communications in chemical pathology and pharmacology, 62(1), 3-17 (1988-10-01)
Previous studies on the metabolic fate of antihypertensive agent labetalol in humans identified only conjugated metabolites of the drug and accounted for only a portion of the dose. In this study, urine samples obtained from three patients on chronic labetalol
Trends in forensic toxicology show the advancement of rapid and sensitive analytical methods for qualitative and quantitative analysis of drugs of abuse. However, forensic toxicologists are continuously faced with the challenges of identifying and quantifying drug blood concentration while simultaneously
Biological mass spectrometry, 21(11), 534-540 (1992-11-01)
A sensitive and selective assay has been developed for the identification and quantitation of 3-amino-1-phenyl butane (3-APB), a metabolite of labetalol, in biological fluids using electron impact gas chromatography/mass-selective detection. Samples were extracted with n-hexane, derivatized with heptafluorobutyric anhydride and
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