A Certified Reference Material of the major urinary metabolite of methadone. Methadone, sold under various trade names such as Symoron, Amidone or Methadose®, is a synthetic opioid used medically as an analgesic and as a maintenance anti-addictive for use in patients with opioid dependency. Suitable uses for this reference standard include as starting material in preparation of calibrators and controls for LC/MS or GC/MS methods in methadone testing for applications in clinical toxicology or forensic analysis.
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CERILLIANT is a registered trademark of Merck KGaA, Darmstadt, Germany
Methadose is a registered trademark of Mallinckrodt Inc.
Snap-N-Shoot is a registered trademark of Cerilliant Corporation
Snap-N-Spike is a registered trademark of Merck KGaA, Darmstadt, Germany
This paper describes a sensitive UPLC-MS/MS method for quantification of methadone and 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP) in single empty puparial case of Lucilia sericata. Larvae were reared on substrates spiked with different concentrations of methadone (0-4 μg/g). Methadone was quantified in puparia
Journal of analytical toxicology, 36(4), 239-249 (2012-04-19)
Methadone is used to treat moderate to severe pain in patients not responsive to non-narcotic analgesics and for maintenance treatment of opioid addiction. Methadone is primarily metabolized by N-demethylation to an inactive metabolite 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidene (EDDP) by CYP3A4 and CYP2B6. Establishing
Few investigations have used placenta as an alternative matrix to detect in utero drug exposure, despite its availability at the time of birth and the large amount of sample. Methadone-maintained opioid-dependent pregnant women provide a unique opportunity to examine the
Journal of analytical toxicology, 34(7), 374-380 (2010-09-09)
Entomotoxicology studies the application of toxicological analysis on necrophageous insects present on human remains. This paper describes the development and validation of a sensitive liquid chromatography tandem mass spectrometry method for quantification of methadone and its main metabolite, 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP)
Drug metabolism and disposition: the biological fate of chemicals, 38(8), 1308-1313 (2010-04-23)
The peripheral conversion of testosterone to estradiol by aromatase is the primary source of endogenous estrogen in postmenopausal women. Studies indicating that placental aromatase is able to metabolize methadone to its primary metabolite, 2-ethylidene-1, 5-dimethyl-3, 3-diphenylpyrrolidin (EDDP), led us to
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