Does Clonidine Show Up on a 12-Panel Drug Test?
Evidence-based answer reviewed against SAMHSA cutoffs and FDA assay documentation · Updated August 2026
Quick answer: No. Standard 12-panel cups do not test for Clonidine. Kratom, shrooms, LSD, steroids remain invisible everywhere.
What a 12-panel drug test actually tests for
Here's the full drug list with typical urine cutoffs:
| Drug class | Typical urine cutoff |
|---|---|
| 10-panel list | above |
| Oxycodone | 100 |
| Buprenorphine (buprenorphine) | ~5–10 |
| Fentanyl OR Ecstasy-slot variant | 1+ / config |
| Clonidine | ❌ Not detected |
Who uses this panel
Today's most common expanded cup for pain clinics, MAT programs, corrections and cautious employers.
What candidates should know
Clonidine (used for blood pressure, ADHD adjunct and opioid withdrawal symptoms) never appears on drug panels and produces no false positives in assay validations. Continue prescribed use normally.
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 Clonidine Show up on a 12 Panel Drug Test?
No — standard employment panels don't include Clonidine. 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)