Yes. Oxazepam is one of the 76 compounds in the LabX LC-MS/MS confirmation panel, reported as detected at or above 50 ng/mL. The LabX 12-panel screen includes a Benzodiazepines line, but how strongly a screen reacts to Oxazepam varies, so a negative screen does not rule it out. Laboratory confirmation measures Oxazepam specifically.
Oxazepam is a benzodiazepine that is prescribed on its own and is also the end product when the body breaks down diazepam, nordiazepam and temazepam.
Oxazepam is prescribed for anxiety and, in some settings, for alcohol withdrawal.
Oxazepam is measured by liquid chromatography with tandem mass spectrometry (LC-MS/MS), which separates the compounds in a sample and identifies each one by its mass. That is different from a rapid screen, which reacts to a family of drugs and can occasionally react to a related substance. The laboratory reports Oxazepam as detected when its concentration is at or above the cut-off of 50 ng/mL, within a reportable range of 50–5,000 ng/mL. It is one of 8 compounds in the benzodiazepines and z-drugs family on the 76-drug confirmation panel.
The laboratory's confirmation report lists an approximate detection window of 1-3 days for Oxazepam. Treat that as a rough guide only: how long any compound stays measurable varies with the amount taken, how often it is used, body composition, metabolism, kidney and liver function, and hydration. A laboratory result cannot be used to work out when a substance was taken.
The LabX 12-panel screen includes a Benzodiazepines line, but how strongly a screen reacts to Oxazepam varies, so a negative screen does not rule it out. Laboratory confirmation measures Oxazepam specifically.
Oxazepam on a report can reflect oxazepam itself or the breakdown of other benzodiazepines, which is why laboratories report the related compounds side by side.
Prescription sedatives and sleep medicines and their metabolites. Standard screens detect individual benzodiazepines unevenly, so confirmation identifies each one.
Yes. Oxazepam is one of the 76 compounds in the LabX LC-MS/MS confirmation panel, reported as detected at or above 50 ng/mL. The LabX 12-panel screen includes a Benzodiazepines line, but how strongly a screen reacts to Oxazepam varies, so a negative screen does not rule it out. Laboratory confirmation measures Oxazepam specifically.
LabX reports Oxazepam as detected at or above 50 ng/mL, and the method's reportable range is 50–5,000 ng/mL. A result below the cut-off is reported as not detected; it does not prove none was present.
The laboratory lists an approximate window of 1-3 days, but it varies with dose, frequency of use, metabolism and hydration, and cannot be used to tell when something was taken.
The LabX 12-panel screen includes a Benzodiazepines line, but how strongly a screen reacts to Oxazepam varies, so a negative screen does not rule it out. Laboratory confirmation measures Oxazepam specifically.
Oxazepam is prescribed for anxiety and, in some settings, for alcohol withdrawal.
Terms on this page: metabolite · cut-off · detection window · presumptive result · confirmation test. More questions: LabX answers.
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