Does Benzos Show Up on a 5-Panel Drug Test?
Evidence-based answer reviewed against SAMHSA cutoffs and FDA assay documentation · Updated August 2026
Quick answer: No. Standard 5-panel cups do not test for Benzos. Benzos, MDMA, methadone, oxycodone, buprenorphine, fentanyl, barbiturates, kratom, shrooms, LSD.
What a 5-panel drug test actually tests for
Here's the full drug list with typical urine cutoffs:
| Drug class | Typical urine cutoff |
|---|---|
| THC (marijuana) | 50 ng/mL urine initial / 15 confirm |
| Cocaine (benzoylecgonine) | 150 / 100 ng/mL |
| Opiates (morphine, codeine, 6-MAM heroin marker) | 2,000 / 2,000 ng/mL |
| Amphetamines (mixed amphetamine salts class) | 500 / 250 ng/mL |
| PCP | 25 / 25 ng/mL |
| Benzos | ❌ Not detected |
Who uses this panel
The federal standard since the Reagan era — still the DOT-mandated panel for CDL drivers, aviation, maritime and other safety-sensitive work.
What candidates should know
Benzos are not on the basic federal 5-panel, but they are included on most 10- and 12-panel employment screens. Whether your job tests for them depends entirely on panel size and employer policy.
Half-life drives detection: alprazolam averages ~11 hours while diazepam's active metabolite nordiazepam persists for 40–100+ hours, which is why diazepam outlasts alprazolam by a wide margin.
Legitimate prescriptions verify cleanly through the MRO. Bring proof to the collection or answer the follow-up call; unexplained positives become 'refusal-to-substitute' records in safety-sensitive programs.
Not on this panel? Read this
Absence from a panel means absence of testing — not safety. Specialty orders, expanded cups, probation panels and sports programs reach further. If your situation involves court supervision, treatment programs or safety-sensitive certification, assume wider coverage.
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Does alprazolam Show up on a Drug Test?
No — Benzos is absent from standard drug panels. Full guide →
How Long Does alprazolam Show up on a Drug Test?
How long Benzos stays detectable in your system (all test types) — urine, hair, saliva & blood windows explained with cutoffs. Full guide →
How Long Does alprazolam Stay in Urine Drug Test?
How long Benzos stays detectable in urine — urine, hair, saliva & blood windows explained with cutoffs. Full guide →
Can Alprazolam Cause a False Positive Drug Test?
Can Benzos trigger a false positive? Cross-reactivity evidence, confirmation testing, and how to clear your name with the MRO. Full guide →
Does alprazolam Show up on a 5 Panel Drug Test?
No — standard employment panels don't include Benzos. Only specialized orders reach it.
Does alprazolam Show up in a 5 Panel Drug Test?
No — standard employment panels don't include Benzos. Only specialized orders reach it.
Do prescriptions count against me?
No — verified prescriptions report as negative through the Medical Review Officer. Declare medications at collection and answer the follow-up call.
Sources & further reading
- SAMHSA — Mandatory Guidelines for Federal Workplace Drug Testing Programs (cutoffs, MRO process)
- DOT — 49 CFR Part 40 procedures for transportation workplace testing
- Brahm NC et al., Mayo Clinic Proceedings 2008;83(1):66–76 — false-positive cross-reactivity reference
- FDA — drug-of-abuse test device labeling (detection window conventions)