QUICK ANSWER
No — kratom will not show up in a drug test in almost every situation you are likely to face. Standard workplace drug tests (the 5-panel, 10-panel, and 12-panel urine screens used for pre-employment screening, probation, and DOT testing) do not look for kratom at all. Kratom only shows up when a test is specifically designed to detect its two main alkaloids, mitragynine and 7-hydroxymitragynine — and those specialised kratom tests are rare, cost extra, and have to be ordered on purpose. On a specialised kratom urine test, mitragynine is usually detectable for 1 to 7 days after the last dose (up to about 9 days for heavy daily users), in blood for 1 to 3 days, in saliva for 1 to 3 days, and in hair for up to 90 days. Kratom does not show up as an opiate on a standard test, although one specific methadone screening test has produced false positives from a kratom metabolite — a confirmatory test clears that result.
Why This Question Causes So Much Confusion
If you search “will kratom show up in a drug test” you will find two kinds of answers that seem to contradict each other. Some articles say “no, never” and others say “yes, it can be detected.” Both are telling the truth — they are just answering different questions.
The confusion comes from the fact that “a drug test” is not one test. It is a family of tests, and what each one finds depends entirely on which substances the person ordering it chose to include. A 5-panel employment screen and a specialised kratom urine test are both “drug tests,” but they look for completely different chemicals. So the honest answer has two parts: on the test you will probably take, no; on a test built to find kratom, yes.
This guide answers the question properly. You will find exactly which panels detect kratom and which do not, how long kratom stays detectable in urine, blood, saliva, and hair, what happens in the specific situations people actually face (a new job, probation, a DOT test, rehab, a court order), whether kratom can trigger a false positive for opiates or methadone, and what you should actually do before a test — including what not to do. Everything below is drawn from laboratory test information, published pharmacokinetic research, and the testing panels labs actually sell.
What Kratom Is — and Why Tests Miss It
Kratom is a tropical tree (Mitragyna speciosa) native to Southeast Asia. Its leaves contain dozens of alkaloids, but two matter for drug testing:
- Mitragynine — the most abundant alkaloid in kratom leaf, responsible for most of its effects. This is the main compound a kratom test looks for.
- 7-hydroxymitragynine (7-OH) — present in much smaller amounts in the leaf, but considerably more potent at the brain’s opioid receptors. Kratom-specific tests look for this one too, along with its metabolites.
Kratom’s effects feel opioid-like because both alkaloids act on some of the same brain receptors as opioids — stimulating at low doses, sedating at higher ones. That similarity is exactly why many people assume kratom must show up on an opiate test. It does not, and the reason is chemistry, not dose.
A standard drug test does not detect “opioid-like effects.” It detects specific molecules. Each drug on a panel has an antibody or a chemical test tuned to that drug’s exact molecular shape. Mitragynine and 7-hydroxymitragynine have a different chemical structure from morphine, codeine, heroin, oxycodone, and every other opiate on a standard panel. To the test, kratom is simply invisible — the antibody looking for morphine does not recognise mitragynine, any more than a key cut for one lock opens a different one.
There is also a regulatory reason kratom is absent from routine screens. Kratom is not scheduled under the US Controlled Substances Act. The DEA lists it as a “drug of concern” rather than a controlled substance, and the FDA has an import alert on kratom products but has not approved kratom for any use. Federal workplace testing programmes, guided by SAMHSA, test for five categories of drugs — amphetamines, cocaine, marijuana, opiates and opioids, and PCP — and kratom falls outside all five. In January 2025, the Department of Health and Human Services and SAMHSA published updated authorised drug-testing panels for federal workplace programmes, effective 7 July 2025, covering Schedule I and II drugs and biomarkers. Kratom was not listed.
Which Drug Tests Detect Kratom — and Which Do Not
This is the table most articles on this topic fail to give you in full. Bookmark it: it is the whole answer in one place.
| Test | What it screens for | Detects kratom? |
|---|---|---|
| 5-panel urine (the federal workplace standard) | THC, cocaine metabolites, opiates (codeine, morphine, heroin), amphetamines, PCP | No |
| 7-panel urine | 5-panel plus benzodiazepines and barbiturates | No |
| 10-panel urine | 5-panel plus benzodiazepines, barbiturates, methadone, propoxyphene, methaqualone | No |
| 12-panel urine | 10-panel plus additional prescription drugs (e.g. oxycodone, tramadol, buprenorphine in some versions) | No |
| 14-panel / expanded specialty panel | Broader prescription and synthetic drugs; some versions list kratom explicitly | Only if kratom is listed on that specific panel |
| DOT (Department of Transportation) test | Federal 5-panel only | No |
| Kratom-specific urine test | Mitragynine and 7-hydroxymitragynine, with LC-MS/MS confirmation | Yes |
| Kratom-specific blood test | Mitragynine and 7-hydroxymitragynine | Yes |
| Hair follicle test (standard) | Common drugs of abuse | No — unless a kratom hair test is specifically ordered |
| Saliva test (standard) | Common drugs of abuse | No — unless kratom is specifically included |
Two things in that table surprise most people. First, adding more panels does not make kratom more likely to appear. A 15-panel test is not “more sensitive” than a 5-panel test in any general sense — each panel is a specific antibody looking for a specific compound. Unless one of those antibodies targets mitragynine, kratom stays invisible no matter how many panels are stacked on top. Second, the DOT test — the one commercial drivers, pilots, and other safety-sensitive workers take — is a federal 5-panel test, and kratom is not on it.
The only tests that find kratom are the ones built to find it. Those exist, and the next section explains exactly how they work.
Why Standard Tests Cannot See Kratom
It helps to understand what actually happens inside a standard urine screen, because it explains why “just add more panels” is not how detection works.
Most workplace urine tests start with an immunoassay — a screening method that uses antibodies designed to bind to one specific drug or drug class. If the antibody finds its target above a set cutoff level, the screen is positive and the sample goes for confirmation. If it does not find its target, the screen is negative and testing stops there. There is no general “drugs present” signal; there is only a set of yes/no questions, one per substance.
Kratom’s alkaloids fail every one of those questions on a standard panel:
- They are not opiates. Mitragynine acts on mu-opioid receptors, but its molecule is an indole alkaloid, structurally unrelated to morphine or codeine. The opiate antibody does not bind to it.
- They are not amphetamines. Despite kratom’s stimulating effects at low doses, mitragynine shares no chemical footprint with amphetamine or methamphetamine.
- They are not THC, cocaine, benzodiazepines, barbiturates, or PCP. No cross-reactivity has been shown with any standard panel target — with one narrow exception covered in the false-positive section below.
- They are not on the cutoff tables. Federal and workplace panels use published cutoff concentrations for each drug. Mitragynine and 7-hydroxymitragynine do not appear on those tables at all.
That is why the answer to “will kratom show up in a drug test” is “no” for the test most people take — not because kratom leaves the body quickly, and not because the test is weak, but because nobody asked the test to look for it.
How a Specialised Kratom Test Works
When someone does want to know whether a person has used kratom, the lab orders a test that targets mitragynine and 7-hydroxymitragynine directly. Here is what that involves, and why it is not part of routine screening.
The two-step process
A kratom-specific test works in two stages, the same way confirmation testing works for other drugs:
- Immunoassay screen. A screening test looks for mitragynine in urine. Labcorp, one of the largest reference laboratories in the United States, offers a kratom-specific urine screen (test code 791750) with a screening cutoff of 5.0 ng/mL for mitragynine. A result below that cutoff is reported negative.
- LC-MS/MS confirmation. Any positive screen is confirmed with liquid chromatography–tandem mass spectrometry, which identifies a substance by its exact molecular signature and measures precisely how much is present. Labcorp’s confirmation cutoff is 1.0 ng/mL for both mitragynine and 7-hydroxymitragynine. This step eliminates false positives: the mass spectrometer cannot confuse mitragynine with anything else.
What the lab actually measures
A dedicated kratom panel looks for three things:
- Mitragynine — the primary marker of kratom use.
- 7-hydroxymitragynine — the more potent minor alkaloid, and a confirmation marker.
- Metabolites — the compounds your body produces as it breaks kratom down, including dihydro-mitragynine and other mitragynine metabolites. Some panels test for these as well, which can extend the detection window slightly.
Why these tests are rare
Three practical reasons keep kratom-specific testing uncommon in routine employment screening:
- Cost. A specialised panel costs more than a standard screen, and the employer or programme pays for it. There is no reason to order it unless kratom use is specifically suspected or relevant.
- No regulatory push. Because kratom is not a scheduled controlled substance, no federal rule requires it on workplace panels, and most employers have no policy reason to add it.
- Availability. Not every lab offers a kratom panel, and not every collection site can order one. It has to be requested deliberately, by name.
The practical consequence is simple: if nobody has told you that you are being tested for kratom specifically, you are almost certainly not being tested for it. Labs are required to disclose what they are screening for, and kratom only appears if it was explicitly included.
How Long Does Kratom Stay Detectable?
If a kratom-specific test is ordered, the next question is how long after your last dose it can still find mitragynine. The answer depends on the sample type, how much you used, and how often.
Detection windows by test type
| Test type | Detection window | What to know |
|---|---|---|
| Urine | 1 to 7 days; up to 5–9 days for heavy daily users | The most common kratom test; detectable as early as 6 hours after use |
| Blood | 1 to 3 days (up to 24 hours most reliably) | Most sensitive in the first hours after use; rarely used for routine screening |
| Saliva | 1 to 3 days | Uncommon for kratom; short window |
| Hair follicle | Up to 90 days | Rarely used for kratom; expensive and slow |
| Nails | 3 to 6 months | Very rarely used; the longest lookback of any method |
For most people, the urine window is the only one that matters, because urine is the sample type almost every kratom-specific test uses. The range is wide — 1 day at the short end, 7 to 9 days at the long end — and that range is real, not hedging. Several things move a person toward one end or the other.
Why the urine window varies so much
The main reason is mitragynine’s half-life — the time it takes your body to clear half of a dose. A human pharmacokinetic study found a terminal half-life of roughly 23 hours for mitragynine, meaning about a full day passes before half of a single dose is gone. But individual variation in that same study was enormous: the half-life ranged from about 7 hours to nearly 40 hours across just nine participants. Other studies have reported a range of roughly 7 to 24 hours. It generally takes five to six half-lives to clear a drug almost completely, which is why a single dose can still be detectable several days later, and why heavy daily use — where each new dose arrives before the last one has cleared — extends the window further.
7-hydroxymitragynine clears much faster, with a half-life of roughly 2.5 to 3 hours, so it is a less useful marker on its own. Mitragynine is the compound that determines the detection window.
Factors that lengthen detection time
| Factor | Why it matters |
|---|---|
| Higher doses | More mitragynine to clear; each dose adds to what is already stored |
| Daily or heavy use | Mitragynine accumulates faster than it clears; chronic users test positive longest |
| Higher body fat | Mitragynine is fat-soluble, so people with more body fat tend to store it longer |
| Slow metabolism | Liver function and age affect how fast mitragynine is broken down |
| Older age | Metabolism generally slows with age, extending clearance |
| Poor liver or kidney function | Both organs are involved in clearing kratom’s compounds |
| Dehydration | Concentrates urine, which can push a borderline result over the cutoff |
Occasional users typically clear kratom from urine within 2 to 3 days. Regular users may test positive for up to a week, and heavy daily users for up to 9 days. There is no home remedy that reliably shortens this window — drinking large amounts of water dilutes urine but does not remove mitragynine from the body faster, and labs check for dilution. (More on that in the “what to do” section.)
Will Kratom Show Up in a Drug Test in Your Situation?
The general answer is “no, unless the test is built for it” — but the risk is not the same in every setting. This table covers the situations people actually ask about.
| Situation | Test usually used | Does kratom show up? |
|---|---|---|
| Pre-employment screening | Standard 5- or 10-panel urine | No — kratom is not on these panels |
| Random workplace testing | Standard 5- or 10-panel urine | No |
| DOT / CDL testing (drivers, pilots, safety-sensitive roles) | Federal 5-panel urine | No — DOT panels exclude kratom entirely |
| Probation / parole | Standard 5- or 10-panel urine, sometimes 12-panel | No on standard panels — but some probation departments order expanded panels that include kratom, so check your conditions |
| Court-ordered testing | Depends on the court order | No on standard panels; yes if the order specifically includes kratom |
| Drug rehab / treatment programme | Often broader panels, sometimes kratom-specific | Possible — treatment programmes are the most likely setting to test for kratom specifically |
| Child custody / family court | Depends on the order | Possible if kratom testing is ordered |
| Medical / hospital toxicology | Comprehensive toxicology screen | Possible — hospital screens are broader and may include kratom alkaloids |
| Military testing | DoD panel | No on the standard panel; the military can order additional testing |
| Sports / athletic testing | WADA and federation panels | Kratom is not on the WADA prohibited list, but some federations test more broadly |
| Life insurance medical exam | Standard drug screen, sometimes broader | No on standard screens |
The pattern is clear: routine employment and DOT testing will not find kratom. The places where kratom-specific testing is genuinely likely are treatment programmes, court orders that name kratom, and some probation departments — in other words, settings where someone already has a reason to look for it. If you are in one of those settings, do not assume a standard panel is all you will face. Read the actual order or programme policy; it will say what is being tested.
A note on probation
Probation deserves a special mention because it is the greyest area. A standard court-ordered urine screen is usually a 5-panel or 10-panel test that does not include kratom. But probation departments can and sometimes do order expanded panels, and some now include kratom on their extended screens. The only way to know is to read your probation conditions or ask your probation officer what panel is used. Guessing wrong here has real consequences, and “I read online that kratom doesn’t show up” is not a defence if your panel did include it.
Can Kratom Cause a False Positive?
This is the second-most-asked question about kratom and drug tests, and the answer is mostly reassuring — with one real exception.
Kratom does not show up as an opiate
Kratom will not make you test positive for opiates, morphine, heroin, codeine, or oxycodone on a standard test. Its alkaloids do not cross-react with the opiate immunoassay. The same is true for amphetamines, cocaine, THC, benzodiazepines, and PCP: there is no reliable evidence that kratom causes false positives for any of these on a standard screen. If you test positive for an opiate while using kratom, the positive result is not coming from the kratom — something else is in the sample, or the product was adulterated.
That last point matters. Kratom products are not regulated by the FDA, and makers do not have to follow safety standards. Contaminated or adulterated products exist, and some have been found to contain other substances. Buying from an unregulated source carries risks that have nothing to do with kratom itself.
The methadone exception — a real false positive
There is one documented false positive, and it is worth knowing about. Research published in the American Journal of Clinical Pathology found that a kratom metabolite can trigger a false positive for methadone on one widely used methadone immunoassay screen. If you use kratom and test positive for methadone unexpectedly, that result is very likely false — and the confirmatory test (LC-MS/MS) will clear it, because the more precise method can distinguish the kratom metabolite from actual methadone. The key point: a false positive on the screen is not the final answer. Confirmation testing exists precisely to catch errors like this, and any competent lab confirms a positive screen before reporting it as positive.
| Claimed false positive | Real? |
|---|---|
| Opiates / morphine / heroin | No — no cross-reactivity |
| Amphetamines / methamphetamine | No |
| THC / marijuana | No |
| Cocaine | No |
| Benzodiazepines | No |
| Methadone (one specific immunoassay) | Yes — documented; cleared by LC-MS/MS confirmation |
If you ever receive a positive result you believe is wrong, ask for the confirmatory LC-MS/MS result. A screen alone is not proof of use.
What to Do Before a Drug Test If You Use Kratom
Honest, practical advice — including the things that do not work.
- Find out what test you are taking. This is the single most useful step. Ask the employer, the programme, or the court which panel is used, or read the paperwork. If it is a standard 5-, 10-, or 12-panel test, kratom is not on it. If it is a kratom-specific test, you will know — and knowing is better than guessing.
- Do not try to cheat the test. Diluting your urine, substituting a sample, or using a detox product can be detected — labs check creatinine levels, specific gravity, and temperature — and a tampered sample is usually treated as a failed test, which is worse than a positive one. In employment settings it can cost you the job; in probation or court settings it can be a violation in itself.
- Consider stopping before the test. If you have time and the test might include kratom, the only reliable way to test negative is to stop using it and let your body clear it. Based on the detection windows above, occasional users should allow at least a week; heavy daily users should allow longer. Note that stopping heavy daily kratom use can cause withdrawal symptoms — if you use heavily, talk to a doctor rather than stopping abruptly.
- Disclose if asked. If a medical professional or a programme asks directly whether you use kratom, tell the truth. Kratom use can interact with medications and anaesthesia, and honesty protects you medically. A doctor is not your employer.
- Keep your product information. If you are in a setting where a false positive is possible (the methadone screen above), knowing the product and having the confirmatory test run is how the error gets corrected.
- Do not rely on “detox” drinks or kits. No over-the-counter product has been shown to reliably remove mitragynine from urine faster than your body does on its own, and some can flag your sample as adulterated.
Is Kratom Legal? Why It Matters for Testing
Kratom’s legal status is part of why it is not on standard tests — and it is also why the testing picture is changing slowly.
- Federal level: Kratom is legal in the United States at the federal level. It is not scheduled under the Controlled Substances Act, and the DEA lists it as a “drug of concern” rather than a controlled substance. The FDA maintains an import alert on kratom products and has not approved kratom for any medical use.
- State level: As of 2026, kratom is illegal in six states, including Alabama and Arkansas, and banned or restricted in a number of cities and counties. Other states have passed Kratom Consumer Protection Acts that regulate rather than ban it. The rules depend entirely on where you live.
- Workplace policy: Even where kratom is legal, an employer can still prohibit its use and can still order a kratom-specific test. Legality and workplace policy are different things — a legal substance can still be against your employer’s rules.
Because kratom is legal federally but unregulated, testing for it is a policy choice, not a legal requirement. That is why most employers do not bother: there is no regulation forcing them to, and the specialised test costs extra. But the trend is worth watching — as kratom use becomes more common and more treatment programmes encounter it, kratom-specific panels are becoming slightly more available. The test you take in two years may not be the test you take today, so the advice to check the actual panel still applies.
Kratom Safety: What the Research Actually Says
A drug-test article would be incomplete without the safety picture, because the reason people worry about testing is usually that they are unsure how risky kratom itself is.
Kratom is not safe, and the risks are not hypothetical. The FDA and the National Institute on Drug Abuse both warn that kratom can cause serious health problems. Reported risks include liver damage, seizures, high blood pressure, constipation, nausea, and dependence. Heavy daily use can lead to withdrawal symptoms when stopped, including muscle aches, insomnia, irritability, and cravings. Kratom products are not regulated, so potency varies wildly between products — and a product labelled as one strength may contain far more mitragynine than stated. 7-OH, the potent minor alkaloid, is also sold on its own in some products, at concentrations far above what occurs naturally in the leaf.
None of this is medical advice, and this article does not recommend using or stopping kratom. If you use kratom regularly, or if you are considering stopping, talk to a doctor — particularly if you take other medications, have liver problems, or are pregnant. If you or someone you know is struggling with kratom use, the SAMHSA National Helpline (1-800-662-4357) is free, confidential, and available 24 hours a day in the United States.
Frequently Asked Questions
Will kratom show up on a 5-panel drug test?
No. A 5-panel test screens for THC, cocaine, opiates, amphetamines, and PCP. Kratom’s alkaloids are none of those, and the test has no antibody that recognises mitragynine or 7-hydroxymitragynine.
Will kratom show up on a 10-panel or 12-panel drug test?
No. Expanded panels add benzodiazepines, barbiturates, methadone, and other prescription drugs — not kratom. More panels do not make kratom more detectable; only a panel that specifically lists kratom will find it.
How long does kratom stay in your system for a drug test?
On a kratom-specific urine test, mitragynine is typically detectable for 1 to 7 days after the last dose — 2 to 3 days for occasional users, up to a week for regular users, and up to 9 days for heavy daily users. Blood: 1 to 3 days. Saliva: 1 to 3 days. Hair: up to 90 days.
Does kratom show up as an opiate on a drug test?
No. Although mitragynine acts on opioid receptors, it is chemically different from morphine, codeine, and heroin, and it does not cross-react with the opiate immunoassay. Kratom will not produce a positive opiate result.
Can kratom cause a false positive for methadone?
Yes — on one specific methadone immunoassay screen, a kratom metabolite has been documented to cause a false positive. The confirmatory LC-MS/MS test distinguishes the two and clears the false result, so always ask for confirmation testing if you receive an unexpected methadone positive.
Does the DOT drug test include kratom?
No. DOT testing follows the federal 5-panel standard, and kratom is not on it. The Department of Transportation, SAMHSA, and NIDA model panels all exclude kratom alkaloids.
Can my employer test me specifically for kratom?
Yes. An employer can order a kratom-specific test, usually through a lab like Labcorp (test code 791750), which screens urine for mitragynine with LC-MS/MS confirmation. Most employers do not, because the test costs extra and kratom is not a federally scheduled drug — but it is possible, and some employers in safety-sensitive industries do order expanded panels.
Will kratom show up on a probation drug test?
Usually not — standard probation screens are 5- or 10-panel tests that exclude kratom. But some probation departments order expanded panels that include kratom, so read your conditions or ask your probation officer which panel is used. Do not assume.
How can I pass a kratom drug test?
The only reliable way is to stop using kratom and allow enough time for your body to clear it — at least a week for occasional use, longer for heavy daily use. Detox drinks, dilution, and substitution do not reliably work and can be detected, turning a possible negative into a definite failure. If you use heavily, talk to a doctor about stopping safely rather than quitting abruptly.
The Bottom Line
Will kratom show up in a drug test? For the test you are most likely to take — a standard 5-, 10-, or 12-panel urine screen, including a DOT test — the answer is no. Kratom’s alkaloids are chemically invisible to those panels, and no federal rule puts them on it. Kratom only shows up when someone orders a test specifically designed to find mitragynine and 7-hydroxymitragynine, and those tests are uncommon outside treatment programmes, court orders, and a few probation departments.
That is not a guarantee. Before any test that matters, find out which panel is being used — it is the one fact that turns a guess into an answer. And if the test does include kratom, the detection window is roughly a week in urine for most users, longer for heavy daily users, and up to 90 days in hair.
Disclaimer: This article is for general information only and is not medical or legal advice. Drug-testing panels, cutoffs, and laws change, and they vary by employer, programme, and state. If you face a drug test in a legal, employment, or medical setting, check the specific panel being used and, if needed, consult a qualified professional.
