Methadone has its own test, called an MTD screen, and it checks urine, saliva, blood, or hair. The usual opiate panel wonโt catch it because that one is built around morphine, codeine, and heroin. If an MTD screen does come back positive, remember that this is a first result, not a verdict, and a lab should confirm it with a second test.
Facing a job screening while youโre in a methadone program? Hereโs what shows up, what can trigger a false alarm, and which protections apply.
What Does MTD Mean on a Drug Test?
MTD is lab shorthand for methadone. You may see this on a test cup, strip, or result sheet, where it sits beside other short codes like AMP (amphetamine) and MOP (morphine).
A positive MTD line tells you that the screen detected methadone above its cutoff level. It canโt report on how much you took or when. Youโll mostly find the MTD line on 10-panel and 12-panel tests, while 5-panel and 7-panel screens usually leave it out.
Will Methadone Show Up in a Drug Test?
Methadone doesnโt show up on most drug screenings. Most labs leave it out of their general panels, so it only appears when the test specifically includes it. For how Suboxone and buprenorphine show up on screens, see our guide to Suboxone and drug screenings.
What Can Cause a False Positive for Methadone?
Screening tests use antibodies that react to a drugโs shape, and a few medications look similar enough to set one off. Thatโs called cross-reactivity. Reported examples include:
- Quetiapine (Seroquel), an antipsychotic
- Diphenhydramine (Benadryl, ZzzQuil, Nytol), an antihistamine
- Doxylamine (Unisom SleepTabs), a sleep aid
- Verapamil, a blood pressure medication
- Tapentadol, a pain medication
In one published case series, hospital patients taking quetiapine tested positive for methadone on a urine screen despite denying use, and confirmation testing on four of them found none.
The fix is confirmation testing. Labs use methods called GC-MS and LC-MS (gas or liquid chromatography paired with mass spectrometry), which split a sample into its individual compounds and identify each one. Because they pinpoint the actual compound instead of reacting to its shape, look-alike medications drop out.
If your result is positive and you arenโt taking methadone, ask for confirmation and tell the reviewer about every medication you use, including over-the-counter sleep aids and allergy pills.
How Long Does Methadone Stay in Your System?
How long methadone stays detectable depends on the test, your dose, how long youโve been taking it, and your metabolism. These are the commonly cited windows:
| Test | Typical detection window |
|---|---|
| Urine | Up to about 7 days |
| Blood | A few hours to a few days |
| Saliva | Up to several days |
| Hair | Up to about 90 days |
If you take methadone daily as prescribed, assume any test that checks for it will find it.
Do Poppy Seeds Affect a Methadone Test?
Poppy seeds can trigger a positive result on an opiate test because the seeds can carry traces of morphine from the opium poppy. They donโt affect a methadone test, since methadone is a synthetic opioid with a different structure and poppy seeds contain none of it.
If youโre going to have an opiate screen soon, skipping poppy seed bagels and cakes for a few days beforehand is an easy precaution.
How Does the Americans With Disabilities Act Protect Me From Discrimination?
Under the ADA, people taking prescribed medication for opioid use disorder are protected from workplace discrimination at employers with 15 or more employees.
In many cases, employers canโt even ask their employees about prescriptions like methadone. As long as you take methadone as prescribed through a licensed treatment program, you have ADA protection.
If you test positive for methadone during treatment, you have options. If methadone is the only issue, your employer can act only if your medication keeps you from doing the job safely or effectively, or if another federal rule bars you from the role. Safety-sensitive jobs, like commercial driving or operating heavy equipment, may require extra review.
What to Tell an Employer or Testing Lab if You Are in a Methadone Program
You can mention your treatment early or wait until the medication review after a positive result. Either way, these steps help the reviewer verify your prescription faster:
- Tell the labโs medical review officer (MRO). After a non-negative screen, an MRO usually contacts you to verify a prescription, and methadone from your clinic counts.
- Disclose the medication, not the diagnosis. Employers generally shouldnโt ask about the condition behind a prescription, so โmethadoneโ is enough.
- Ask your clinic for a short letter confirming your prescription and dosing schedule. It gives the MRO or employer something concrete to verify.
- If your job is safety-sensitive, ask your clinic to address that in the letter, since employers are most likely to push back there.
Start Methadone Maintenance at Health Care Resource Centers
Health Care Resource Centers (HCRC) has comprehensive medication-assisted treatment (MAT) programs with methadone and buprenorphine.ย
If you need help on the path to recovery, we can provide compassionate care. We welcome all patients in New England to schedule an appointment at their nearest clinic by contacting us online.
Frequently Asked Questions
Does Methadone Show Up on a 10-Panel Test?
Usually, yes. Extended 10-panel and 12-panel tests normally include a methadone line, while 5-panel and 7-panel screens usually donโt. Ask which panel your employer uses.
Will Methadone Show Up as an Opiate?
Methadone wonโt show up as an opiate on a standard opiate test, which targets morphine, codeine, and heroin. Methadoneโs structure is different, and it has its own MTD line.
What Happens After a Positive Methadone Screen?
After a positive screen, the sample is usually sent for confirmation testing, and a medical review officer may call to verify your prescription. A letter from your treatment program speeds up that step.
Can an Employer Fire Me for a Positive Methadone Test?
Not simply for taking methadone as prescribed, since the ADA protects people in treatment. An employer may act if the medication keeps you from doing the job safely or effectively, or if a federal rule bars you from it.
How Is Suboxone Different on a Drug Test?
Suboxone contains buprenorphine, which standard opiate panels also tend to miss and which needs its own test.
Sources
- United States Anti-Doping Agency (2026) Can poppy seeds cause a positive drug test? Available at: https://www.usada.org/spirit-of-sport/can-poppyseeds-cause-a-positive-drug-test/ (Accessed November 5, 2026).
- Brahm, N.C., Yeager, L.L., Fox, M.D., Farmer, K.C. and Palmer, T.A. (2010) Commonly prescribed medications and potential false-positive urine drug screens. American Journal of Health-System Pharmacy, 67(16), pp. 1344โ1350. doi:10.2146/ajhp090477. Available at: https://pubmed.ncbi.nlm.nih.gov/20689123/ (Accessed November 5, 2026).
- Collins, A.A., Merritt, A.P. and Bourland, J.A. (2012) Cross-reactivity of tapentadol specimens with DRI methadone enzyme immunoassay. Journal of Analytical Toxicology, 36(8), pp. 582โ587. doi:10.1093/jat/bks064. Available at: https://pubmed.ncbi.nlm.nih.gov/22879537/ (Accessed November 5, 2026).
- Lasiฤ, D., Ugleลกiฤ, B., ลฝuljan-Cvitanoviฤ, M., ล upe-Domiฤ, D. and Ugleลกiฤ, L. (2012) False-positive methadone urine drug screen in a patient treated with quetiapine. Acta Clinica Croatica, 51(2), pp. 269โ272. Available at: https://pubmed.ncbi.nlm.nih.gov/23115954/ (Accessed November 5, 2026).
- Fischer, M., Reif, A., Polak, T., Pfuhlmann, B. and Fallgatter, A.J. (2010) False-positive methadone drug screens during quetiapine treatment. Letter to the Editor. The Journal of Clinical Psychiatry, 71(12), p. 1696. doi:10.4088/JCP.10l06044yel. Available at: https://www.psychiatrist.com/jcp/false-positive-methadone-drug-screens-during-quetiapine/ (Accessed November 5, 2026).
- Drugs.com (2024) Does methadone show up on a drug test? Available at: https://www.drugs.com/medical-answers/methadone-show-drug-test-3543776/ (Accessed November 5, 2026).
- U.S. Department of Justice, Civil Rights Division (2022) The Americans with Disabilities Act and the Opioid Crisis: Combating Discrimination Against People in Treatment or Recovery. Available at: https://www.ada.gov/resources/opioid-use-disorder (Accessed November 5, 2026).
- U.S. Equal Employment Opportunity Commission (2000) Questions and answers: enforcement guidance on disability-related inquiries and medical examinations of employees under the ADA. Available at: https://eeoc.gov/laws/guidance/questions-and-answers-enforcement-guidance-disability-related-inquiries-and-medical (Accessed November 5, 2026).
- Mayo Clinic Laboratories (n.d.) Methadone. Drug book. Available at: https://www.mayocliniclabs.com/test-catalog/drug-book/specific-drug-groups/methadone (Accessed November 5, 2026).
