What Is 7-OH (7-Hydroxymitragynine)? | Risks, Potency, Spotting Adulterated Kratom, and What to Do

A doctor holding a brown pill bottle for the topic what is 7-oh.
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Here at Impact Recovery Center, we’ve watched the same story arrive at our door more than once this year. Someone picks up a small tablet or a shot bottle at a store they drive past every day. The label says kratom, or it says nothing much at all.

Months later they’re taking it six, eight, ten times a day and they can’t stop without getting sick. The product wasn’t kratom leaf. It was 7-OH, and the FDA now describes it as an opioid.

If you’re reading this because that story sounds familiar, you’re not behind. You’re early, and there’s a way through it. Our kratom addiction treatment program was built for people who never set out to use an opioid.

TL;DR

7-OH is a minor alkaloid found in kratom leaf in trace amounts, and also formed in the body from mitragynine. The 7-OH in tablets, gummies, and shot bottles is neither of those, and is manufactured by chemically converting mitragynine. It acts on the same mu-opioid receptors as morphine and heroin.

Key Takeaways

  • 7-OH in products isn’t the same substance as 7-OH in a leaf: Natural kratom leaf carries roughly 0.01% to 0.04% 7-OH by dry weight, per the FDA. Concentrated products have tested at levels achievable only by synthetic means.
  • It behaves like an opioid, because it is one: The FDA states that 7-OH is an opioid that can be more potent than morphine, based on animal and laboratory data rather than human dosing studies. Dependence, tolerance, and withdrawal follow opioid patterns.
  • The label tells you almost nothing: Peer-reviewed testing found products labeled “kratom extract” containing 7-OH at 5% to 28% above their own stated amounts, missing the leaf’s other major alkaloids, and carrying unidentified compounds.
  • Treatment is more than detox: Getting through withdrawal is the first step, not the whole thing. What keeps people off 7-OH is distance from the store, structure, and a recovery community.

What Is 7-OH, Exactly?

7-OH is short for 7-hydroxymitragynine, an alkaloid associated with the kratom plant (Mitragyna speciosa). It’s confusing to define because it’s three things at once:

  • A trace alkaloid in the leaf: It occurs naturally in kratom, but barely. The FDA’s scientific assessment puts natural levels at roughly 0.01% to 0.04% of dry leaf weight, and under 2% of the leaf’s total alkaloid content.
  • A metabolite your body makes: When you process mitragynine, kratom’s main alkaloid, some of it converts to 7-OH internally. The conversion happens in anyone who uses kratom leaf, and it’s part of why kratom produces opioid-like effects at all.
  • A manufactured ingredient: There isn’t enough 7-OH in a leaf to fill a bottle of tablets, so producers chemically oxidize mitragynine isolates into 7-OH. The FDA calls the result “concentrated and synthetic 7-OH products” and distinguishes them from natural kratom leaf.

The third one is what this article is mostly about, and it’s the one causing harm. For the broader picture on the plant itself, our primer on what kratom is and whether it’s dangerous in recovery covers that ground.

7-OH Compared With Kratom Leaf and Mitragynine

Natural Kratom LeafMitragynine (Isolated)7-OH (in Leaf)Concentrated 7-OH Product
Where It Comes FromHarvested and dried Mitragyna speciosaExtracted from leafTrace alkaloid in leaf, plus metabolite formed in the bodyChemically converted from mitragynine isolates
Typical 7-OH Content~0.01–0.04% dry weight (FDA)Not applicableUnder 2% of total leaf alkaloidsMeasured at 22–75 mg/g in one peer-reviewed analysis
Mu-Opioid ActivityMixed and dose-dependent in cell-based and animal modelsPartial and assay-dependent; acted as an antagonist in some modelsSame alkaloid, negligible doseSubstantial and opioid-typical in cell-based and animal models
Sold AsPowder, capsules, teaResearch and manufacturing inputNot sold separatelyTablets, gummies, drink mixes, shot bottles
Federal Status (Sept 2026)Not scheduledNot scheduledNot scheduledScheduling action pending; see below

Is 7-OH an Opioid?

Yes. The FDA’s public position is that 7-OH is an opioid that can be more potent than morphine in animal and laboratory studies, and the DEA has opened scheduling proceedings on that basis.

Mechanically, 7-OH acts on the mu-opioid receptor, the same target as morphine, oxycodone, and heroin. The FDA’s assessment puts its receptor binding affinity well above mitragynine’s, with published figures varying by assay. Laboratory studies generally characterize it as a partial mu-opioid agonist.

What that means in practice is what you’d expect from an opioid:

  • Right away: euphoria, sedation, and slowed breathing
  • With repeated use: tolerance, so the same amount stops working
  • When you stop: dependence and withdrawal

The American College of Medical Toxicology reports that these patterns, in people using 7-OH products, are typical of other opioids.

One correction worth making, because it comes up constantly. 7-OH’s receptor binding affinity is actually lower than morphine’s, per the FDA’s own comparison table. The “more potent than morphine” finding comes from functional and behavioral studies, not from binding strength.

The distinction doesn’t make 7-OH safer, but it does explain why the science on it looks contradictory at a glance. For the fuller picture on how this class of drug works, our page on opioid addiction treatment walks through it.


How Strong Is 7-OH Compared With Morphine?

Most of what you’ll read online goes wrong right here, so it’s worth being precise. Potency numbers only mean something when you know what was measured and in what.

The Claim You’ll SeeWhat Was Actually MeasuredIn What ModelWhat It Does Not Mean
“13 times stronger than morphine”Contraction response in isolated tissueGuinea-pig ileum, ex vivo (via FDA assessment)Not a human dose equivalence, and over 20 years old
“5 to 6 times more potent than morphine”Pain-response thresholdsMice, subcutaneous injection (Matsumoto et al., 2006)Not an oral human potency figure
“4.5 times more potent at suppressing breathing”Minute volume depressionRats, IV plethysmography (Zuarth Gonzalez et al., 2025)Not a measure of overdose likelihood in people
“Far stronger than mitragynine”Mu-receptor binding affinityCell-based receptor assays (via FDA assessment)A comparison to mitragynine, not to morphine

None of these are human dosing studies, because those don’t exist for 7-OH at the concentrations found in retail products. The honest summary is the FDA’s: an opioid that can be more potent than morphine, with animal and laboratory data pointing the same direction.


Why Can’t You Trust the Label?

Because independent testing keeps finding something different from what’s printed on the package.

A peer-reviewed analysis in the Journal of AOAC INTERNATIONAL examined products misbranded as kratom. It found 7-OH at 22 to 75 mg per gram, with mitragynine at only 2.0 to 6.0 mg per gram. The ratio is backwards from any natural leaf.

Measured 7-OH also ran 5% to 28% higher than the products’ own label claims, the leaf’s other major alkaloids were missing, and the analysis flagged unidentified compounds. The authors concluded these were not kratom extracts, as labeled, but synthetic derivatives.

The practical consequence is simple, and it’s the part that hurts people. If the package says five milligrams, you have no reliable idea what you took. Two products that look identical on a shelf can differ substantially in strength.


Signs of 7-OH Dependence

Dependence on 7-OH can establish faster than people expect. These are short-acting products that get redosed many times a day, so tolerance builds on a compressed schedule.

Watch for these patterns, in yourself or someone you love:

  • Needing more of the product to get the same effect
  • Feeling sick, achy, restless, or sweaty a few hours after the last dose
  • Dosing on a schedule, including waking up to dose
  • Buying from multiple stores, or keeping a stash in the car
  • Trying to stop and getting derailed by withdrawal within a day
  • Spending noticeably more per week than a few months ago
  • Hiding it, or minimizing it because “it’s just a supplement”

Withdrawal itself follows opioid patterns, and it’s genuinely hard. Our guide to kratom withdrawal signs and timeline covers what to expect physically, and why the concentrated products change that picture.


Does 7-OH Show Up on a Drug Test?

Not on a standard panel. Routine drug screens aren’t designed to detect kratom alkaloids, so a typical five- or ten-panel screen comes back negative.

Detecting 7-OH or mitragynine requires a dedicated test, specifically liquid chromatography with tandem mass spectrometry ordered for these alkaloids at a laboratory that offers it. Most hospitals send those specimens out to a reference lab.

There’s no reliable published detection window. The one human pharmacokinetic study of mitragynine reported a half-life averaging around 23 hours with very wide variation between people, and only a tiny fraction leaving the body unchanged in urine.

Anyone quoting you a specific number of days is guessing. If a test result matters for a job, a court, or a treatment program, the ordering provider or the lab is the only reliable source on timing.


Is 7-OH Legal?

Legal status is changing quickly. The section below reflects the picture as of September 2026 and should be re-checked before you rely on it.

At the federal level, 7-OH is not yet a controlled substance. The DEA published a notice of intent on July 6, 2026 to temporarily place 7-OH above a specified threshold into Schedule I, and the comment period on that action was extended into September 2026.

Separately, three related synthetic compounds (mitragynine pseudoindoxyl, MGM-15, and MGM-16) were placed in Schedule I effective August 26, 2026. Federal action targets concentration thresholds, not the kratom plant itself.

State law is where this gets sharply different depending on where you live, and our two home states sit at opposite ends of it:

  • In Alabama, kratom is illegal: Mitragynine and hydroxymitragynine are both Schedule I controlled substances under Alabama Code § 20-2-23, added in 2016. There is no legal kratom market in Alabama, for leaf or for concentrate.
  • In Georgia, kratom is legal but capped: Under O.C.G.A. § 16-13-122, kratom products can’t exceed 0.5 mg of 7-OH per gram or 1 mg per serving, and synthetically derived alkaloids including synthetic 7-OH are prohibited outright. Sales are restricted to buyers 21 and older.

We’re not in a position to tell you what your legal exposure is, and none of this is legal advice. What we can tell you is that legality has never been a good proxy for safety.


What Treatment for 7-OH Dependence Actually Looks Like

Care for 7-OH dependence follows the same principles as care for any other opioid, and it starts with something we’re direct about. We don’t have a detox on site, and our FAQ says so plainly: clients need to be fully detoxed before entering Phase 1. We’ll help you get connected to a detox facility first.

After that, the work is structural. Here’s the honest problem with detox alone: You get five or six sober days, then you go home, and on day seven you drive past the same store you always drive past.

Nothing in your life has changed except that you feel worse. It isn’t a willpower failure, it’s a design failure.

Our 35-day immersive 12-step program is built to interrupt exactly that:

  • Fourteen clients maximum
  • Owners running groups themselves daily
  • Staff who work their own program

You leave with a written plan covering meetings, sponsor connection, living environment, and relapse prevention. From there, transitional living and aftercare can extend the continuum well past the intensive.


If Someone You Love Is Using 7-OH

The hardest part of this one, for families, is that it doesn’t look like what you were watching for. There’s no needle and no pill bottle. There’s a small package from a store that also sells lottery tickets, and a person who genuinely believes they’re taking a supplement.

The gap between what you’re seeing and what you expected to see costs families months. It’s also why we built Impactful Families as its own recovery process rather than a visiting hour.

A few things that help in the meantime:

  • Name what you saw, not what you concluded: “You’ve been taking those tablets every few hours and you were sick Saturday when you ran out” lands better than “you’re addicted.”
  • Understand why “just stop buying it” fails: By the time you’ve noticed, stopping abruptly means withdrawal. It’s a medical situation, not a discipline problem.
  • Skip the ambush: Ask for a short conversation at a neutral time, bring one calm person if it helps, and offer one concrete next step.
  • Don’t argue about whether it’s “a real drug”: The argument is unwinnable and beside the point. What matters is whether they can stop when they want to.
  • Expect shame, and don’t feed it: People dependent on a product they bought at a counter often feel foolish in a way that keeps them out of treatment for months. Shame is the real obstacle, and it responds to being met without judgment.

Beyond the first conversation there’s a longer arc to this, and our practical guide on how to support someone in rehab walks through it.


When to Get Emergency Help

Because 7-OH acts on opioid receptors, suspected 7-OH toxicity should be treated as a possible opioid overdose. Call 911 immediately if someone is:

  • Unresponsive or hard to wake
  • Breathing very slowly
  • Blue around the lips

Naloxone can reverse opioid-related breathing suppression, and it has reversed 7-OH-related respiratory depression in animal studies and in published human cases. Emergency responders carry it.

Clinicians have also reported breathing problems returning after an initial naloxone response, which is why emergency care matters even when someone seems to recover. Call 911 and let EMS direct care.

For guidance on a suspected poisoning, Poison Control is available at 1-800-222-1222. For a mental health or suicidal crisis, call or text 988.


Not Sure If This Is You Yet?

You don’t have to have it figured out before you call. If you’re wondering whether what you’re dealing with counts as dependence, that question is reason enough to reach out.

Call us at 205-751-4936 or send a confidential inquiry. Confidential either way, and no obligation.


Frequently Asked Questions

Is 7-OH the same thing as kratom?

No, and the difference matters. Kratom is the plant and mitragynine is its main alkaloid, while 7-OH is a minor alkaloid present in the leaf in trace amounts and manufactured from mitragynine for concentrated products. The FDA is explicit that its action targets concentrated 7-OH, not natural kratom leaf.

Is 7-OH addictive?

Yes. The American College of Medical Toxicology documents that people using 7-OH products have developed dependence, tolerance, and withdrawal typical of other opioids.

Can you overdose on 7-OH?

7-OH acts on the same receptors that control breathing drive, and federal and state health authorities have documented reports of serious harm and death associated with 7-OH exposure. Risk is compounded when 7-OH is combined with alcohol, benzodiazepines, or other depressants. Reporting systems count reports rather than rates, so no reliable overdose rate exists.

How long does 7-OH withdrawal last?

Withdrawal follows opioid patterns, but there’s no published timeline specific to 7-OH in retail products. Because these products are short-acting and frequently redosed, symptoms can start within hours of a missed dose. Timelines vary enough that medical guidance beats any chart, and our guide to choosing the right level of support to quit kratom covers the options.

Is 7-OH banned?

Not federally, as of September 2026. A DEA notice of intent to schedule 7-OH above a threshold is pending, and three related synthetic compounds became Schedule I in August 2026. State law varies widely, and kratom including hydroxymitragynine is a Schedule I controlled substance in Alabama.

Why is 7-OH sold at gas stations and smoke shops?

Because it hasn’t been federally scheduled, and because it’s marketed alongside legal supplements. The words “kratom” or “natural” on a label tell you nothing about how concentrated a product is, which is part of why regulators moved on concentration thresholds specifically.

I was using 7-OH to get off opioids. Does that count as being in recovery?

We get this question in person, and it deserves a straight answer. Trading one mu-opioid agonist for another isn’t the same as being free of opioids, even when it felt like progress and even when it was an honest attempt. Plenty of people arrive here from exactly that path, and it isn’t a mark against you.

Does insurance cover treatment?

Reach out and we’ll discuss payment options based on your situation. Detox happens elsewhere, so ask that facility about its own billing separately.


Getting Started

You didn’t set out to become dependent on an opioid. You bought something off a shelf, in a store that was open to anyone, and it turned into something you can’t put down. It’s not a character flaw and it’s not a story you need to be embarrassed about.

We’ve heard this one many times now, from people who found a way forward. Fourteen clients at a time. Owners in the room, and people on staff who’ve been where you are.

Call us at 205-751-4936 or send a confidential inquiry. We’ll talk it through, no pressure either way.

The content above is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are in crisis, call or text 988.

Jacob Swartz, Impact Recovery Center team member

Jacob Swartz

Director of Recovery

Jacob Swartz, Director of Recovery, brings a deeply personal journey of transformation to his role. Born in Little Rock, AK, and at the age of 16, he found relief in drugs and alcohol, initially seeking a sense of belonging and liberation from his reserved, quiet nature. Over the following decade, Jacob’s addiction deepened until a pivotal moment in June 2017 forced him to confront his problem. Through the recovery process Jacob experienced a profound shift in his perspective and behavior.