Yes. Zolpidem is one of the 76 compounds in the LabX LC-MS/MS confirmation panel, reported as detected at or above 10 ng/mL. It is a breakdown product of zolpidem (Ambien). Zolpidem is not one of the 12 lines on the LabX 12-panel screen. It is identified by adding laboratory confirmation, which tests for all 76 compounds on the panel.
Zolpidem is a sleep medicine in the 'Z-drug' group. It is not a benzodiazepine but acts on some of the same brain receptors. Our laboratory measures zolpidem phenyl-4-carboxylic acid (zolpidem PCA), its main metabolite, which is present at higher levels and for longer than zolpidem itself.
Also known as or found in: Ambien.
Zolpidem is prescribed for short-term treatment of insomnia.
Zolpidem 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 Zolpidem as detected when its concentration is at or above the cut-off of 10 ng/mL, within a reportable range of 10–5,000 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 <60 hours for Zolpidem. 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.
Zolpidem is not one of the 12 lines on the LabX 12-panel screen. It is identified by adding laboratory confirmation, which tests for all 76 compounds on the panel.
Zolpidem is not detected by benzodiazepine screens. It is one of the sedatives reported in cases where drinks were spiked, and it is identified by laboratory confirmation; testing cannot establish how or when it was taken.
Prescription sedatives and sleep medicines and their metabolites. Standard screens detect individual benzodiazepines unevenly, so confirmation identifies each one.
Yes. Zolpidem is one of the 76 compounds in the LabX LC-MS/MS confirmation panel, reported as detected at or above 10 ng/mL. It is a breakdown product of zolpidem (Ambien). Zolpidem is not one of the 12 lines on the LabX 12-panel screen. It is identified by adding laboratory confirmation, which tests for all 76 compounds on the panel.
LabX reports Zolpidem as detected at or above 10 ng/mL, and the method's reportable range is 10–5,000 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 <60 hours, but it varies with dose, frequency of use, metabolism and hydration, and cannot be used to tell when something was taken.
Zolpidem is not one of the 12 lines on the LabX 12-panel screen. It is identified by adding laboratory confirmation, which tests for all 76 compounds on the panel.
Zolpidem is prescribed for short-term treatment of insomnia.
Zolpidem is a breakdown product of zolpidem (Ambien). Laboratories measure it because it shows the parent drug was actually processed by the body.
Terms on this page: metabolite · cut-off · detection window · presumptive result · confirmation test. More questions: LabX answers.
Test for Zolpidem and 75 other compounds
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Medical disclaimer. LabX Diagnostics and Vantage provide laboratory testing only. Test results and information on this site are for informational purposes and are not medical advice, diagnosis or treatment. Always consult a licensed physician or other qualified healthcare provider about your results and before making any health decision. If you think you may have a medical emergency, call 911. Read the full disclaimer.
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