A preliminary study of hydrocodone and hydromorphone to oxycodone ratios for distinguishing impurities from independent opioid use
Choucair I, Villalba C, Vera M, Cassella-Mclane G, Durant T, El-Khoury J. A preliminary study of hydrocodone and hydromorphone to oxycodone ratios for distinguishing impurities from independent opioid use. Clinical Biochemistry 2022, 112: 6-10. PMID: 36535386, DOI: 10.1016/j.clinbiochem.2022.12.009.Peer-Reviewed Original ResearchConceptsConcentrations of hydrocodoneMean ratioOxycodone pillsPrescription complianceOpioid useUDT resultsMedication recordsOxycodoneAdditional opiatesPatientsHydromorphoneLarger sample sizeAbstractTextHydrocodoneDrug abuseLiquid chromatography-tandem mass spectrometryDrug testingChromatography-tandem mass spectrometryLC-MS/MSFurther validationPreliminary studySample sizeOpiatesSensitive methodPills