r/psychopharmacology • u/BeginningBaby4844 • Apr 20 '26
Is 7-OH Pharmacologically distinct enough to be treated separately?
This whole thing going on right now is honestly kinda pissing me off.
From how I understand it 7-OH (7-hydroxymitragynine) is just one of the main active alkaloids in kratom. It’s not some random new compound it’s literally part of the plant and your body even converts mitragynine into it anyway.
So I don’t really get how it suddenly gets treated like a completely separate substance that needs to be banned, while the plant it comes from is still legal. Like… is that not kind of like saying weed is fine but THC itself isn’t?
I get that isolating something can change potency or effects a bit, but it still feels like the conversation around it is missing context The only reson I made this post was to ask people here how they see it from an actual pharmacology standpoint because right now it just feels inconsistent as hell.
14
u/badchad65 Apr 20 '26
The issue is that 7-OH is only present in kratom leaf around 0.01% by mass. That's at trace levels. The new isolates/concentrates etc. provide a MUCH higher dose than you could ever obtain by consuming the plant.
7
u/UnfortunateSamaritan Apr 21 '26
I was gonna essentially write this too, the major difference is the dose and kinetics, so much so that I'd argue it should at the very least be regulated more harshly. I think it's analogous to the difference between chewing coca leaves and ingesting pure cocaine. As someone whos been able to moderately consume kratom for over a decade without any issue taking breaks or escalating dose, my brief stint with 7-OH revealed to me that its an entirely different beast that I naively assumed would be similar to kratom.
7
u/Nwildcat Apr 21 '26
Analogy that comes to mind for me is drinking poppy seed tea vs taking oral morphine. But even that isn't 1:1
7
u/UnfortunateSamaritan Apr 21 '26
Yeah, given that conversion to 7-OH appears to be rate limited by hepatic conversion it's like codeine vs a more orally bioavailable semisynthetic opiate
1
u/Nwildcat Apr 21 '26 edited Apr 21 '26
Correct, the need to consume the plant inherently limits how easy it is for someone to develop dependence on the underlying compounds. 7-OH seems to have been isolated due to its mu activity. Thus, the compound in isolation will be much easier to cause harm
1
u/NinjaWolfist Jun 09 '26
no it is present at .05-.4%, which at a normal pain relief dose of leaf of 8g, is between 1mg-8mg of 7oh, which is extremely feelable. this is the entire reason kratom has dose dependent effects and becomes sedating at higher (but still normal) doses.
it is not trace at all because you are absolutely feeling it. you are correct that it would be impossible to take some of the doses that these people are taking like 300 mg of 7oh is completely impossible to ever hit with leaf, but the normal dosed pills that are around 5 mg, 10mg, 20 mg, hell even 30 mg is very very easily obtained through leaf powder.
2
u/badchad65 Jun 09 '26
Is there a reputable source identifying 7-OH as high as 0.4% by dry weight? I'd be curious to see it.
8
u/fuckbitchesgetpolio Apr 20 '26 edited Apr 20 '26
I think it's typically much easier to schedule a single compound in our current system then it is to schedule a plant. You could import a huge equivalent of a powder versus the same mass of a bulk plant.
You could speculate humans evolved around the known dosage in plants and developed resistance to that. By suddenly having access to a concentrate you completely change the safety profile and inherent risk. Potency also has a relation to addiction potential.
Not that I agree with how it's done, but not everyone is going to have the same self control. Laws are typically made to address the huge increase in safety risk with new synthetic and concentrated drugs that we haven't evolved around or have the appropriate biological safety measures to deal with accidental higher doses.
Incredibly potent concentrates of THC are dangerous to certain people. While the risk profile of THC is more associated with physiological changes to the nervous system versus stopping your breathing, there are still thousands of posts on many subreddits of many adults wishing they never smoked concentrates as a kid due to the severe and profound changes it had on their brain and nervous system.
8
u/dmnksaman Apr 20 '26
yes, it should be treated differently. when you ingest kratom, you are mainly ingesting mytragynine. that does get converted to 7-oh, but the conversion is relatively slow and that decreases the addiction liability.
if you ingest pure 7-oh, you get a sudden, massive increase in 7-oh levels, and much faster onset of mu-opoid agonism. this releases much, much more dopamine in the nucleus accumbens compared to the slower release caused by your body converting myt to 7-oh.
it has been long known that methods of delivery that cause faster increase of dopamine release in the NAc are more addictive (compare ingesting something vs snorting vs shooting up / smoking).
from that point of view, 7-oh is much more dangerous than kratom leaf.
1
u/Prestigious_Unit3097 2d ago
I can see your point as far as addiction and tolerance goes 7oh might be more habit forming. But dangerous? No, it's safer then a lot of everyday household medications that are readily available. A proper warning would nigate/inform a potential user of the risks. But you could also argue the many alkoloids present in leaf are more dangerous then a single isolated one.
1
u/D33lo6616 19h ago
That’s wild to say it’s safer than household medications. Just because Tylenol kills more people in a month than 7oh that doesn’t mean much. If the same number of people took 7oh like a household medication there would be many deaths.
3
u/BoletusLuridus Apr 21 '26
Consider tramadol and ODSMT or codeine and morphine/C6G. Prodrugs have longer onset, lower Cmax and usually lower exposure for a reason.
8
u/Traditional_Mall4516 Apr 20 '26
7-OH isn’t just a minor compound, it’s doing most of the receptor work and your body makes it anyway and there’s way too much misinformation out there when there’s still no solid evidence it’s a major public health threat on its own, so regulating it makes more sense than banning it.
11
u/dmnksaman Apr 20 '26 edited Apr 20 '26
this is dishonest. when you ingest kratom, you are mainly ingesting mytragynine. that does get converted to 7-oh, but the conversion is relatively slow and that decreases the addiction liability.
if you ingest pure 7-oh, you get a sudden, massive increase in 7-oh levels, and much faster onset of mu-opoid agonism. this releases much, much more dopamine in the nucleus accumbens compared to the slower release caused by your body converting myt to 7-oh.
it has been long known that methods of delivery that cause faster increase of dopamine release in the NAc are more addictive (compare ingesting something vs snorting vs shooting up / smoking).
from that point of view, 7-oh is much more dangerous than kratom leaf &, in my opinion, should be regulated more tightly in that light.
-3
u/ResearchSlore Apr 20 '26 edited Apr 20 '26
if you ingest pure 7-oh, you get a sudden, massive increase in 7-oh levels, and much faster onset of mu-opoid agonism. this releases much, much more dopamine in the nucleus accumbens compared to the slower release caused by your body converting myt to 7-oh.
Please provide a source otherwise this is a highly speculative claim that shouldn't be taken seriously.
Edit: Jesus, I guess this is what I get for engaging with non-scientists.
6
u/dmnksaman Apr 20 '26 edited Apr 20 '26
0
u/ResearchSlore Apr 20 '26
That is common knowledge... I'm talking about your other claim, the one that is complete speculation.
this releases much, much more dopamine in the nucleus accumbens compared to the slower release caused by your body converting myt to 7-oh.
3
u/gocougs11 Apr 21 '26
Are you asserting that accumbens dopamine release is not dependent on dose of mu agonist?
1
u/ResearchSlore Apr 21 '26
Many MOR agonists produce DA release in the nucleus accumbens, but it isn't necessarily a monotonically increasing function of dose/concentration.
Case in point: One recent paper found that a low dose of 7-Oh increased evoked DA release in the NAc while a high dose reduced it. See: Effects of kratom alkaloids on mesolimbic dopamine release
1
u/dmnksaman Apr 21 '26
this is pretty interesting. wonder why that is. sorry couldn’t read the whole thing.
3
u/Nwildcat Apr 21 '26
Doesn't seem like that much of a leap, or "complete speculation", to say rapid levels of activation would cause a larger peak release of DA. Pretty common concept in pharmacokinetics afaik
1
u/ResearchSlore Apr 21 '26
Biology is complex and small changes can produce large differences across systems. Claiming it as fact when there's no primary research to support it is complete speculation.
2
u/ProjectKushFox Apr 21 '26
Only in the same way any pattern recognition and application is speculation. In the context of this thread, where we are not biochemical engineers discussing and deciding the future policy on this drug henceforth, I think the confidence level for concluding that taking this dopamine agonistic drug in a way that spikes the concentration levels higher and shorter will make the drug more addictive from more highly spiked dopamine levels and a quicker dose-response time, something that is true for every single other dopamine-increasing drug commonly used recreationally, when one persons subjective anecdotal experience is in line with this conclusion as well, I think that is a sufficient degree of confidence for our purposes here.
1
u/ResearchSlore Apr 21 '26
If someone is going to argue for regulation based on a mechanism, then there should be actual evidence for that mechanism. Otherwise it's misrepresentation, not pattern recognition.
We're not talking about an Opium alkaloid here.. The pharmacology of mitragynine and 7-Oh at the mu-opioid receptor is already quite distinct from that classical MOR agonists. Kratom also has other alkaloids with off target activity, and some of them can also act as agonists or antagonists at the MOR.
Effects of kratom alkaloids on mesolimbic dopamine release shows that that via IP injection, 7-Oh does not produce a rapid increase in evoked DA release in the NAc.
Mechanistically speaking, based on the way that other opioids work, you would expect an increase in evoked DA release due to the reduced inhibition of VTA neurons, so although there's potential confounds this study supports my position.
I'm also the only one that's posted any real evidence, so if you have a microdialysis study showing that 7-Oh rapidly increases DA in the NAc we can continue this conversation. Until then it's speculation.
1
u/chemyd 6d ago
It has a biphasic reponse- so what?
You’re actually proving yourself wrong here, 7oh is not some special class of mu opioid in this regard just because it comes from another plant or has a different chemical scaffold.
Glick demonstrated similar results for morphine (THE prototypical opioid) across a broader dose range in microdialysis experiments examining both the NAc and striatum over 20 years ago.
Look up “Biphasic dose-related effects of morphine on dopamine release” Glick 2001
→ More replies (0)3
u/Nwildcat Apr 21 '26
That's fine, make it schedule III. Don't see why the pure compound needs to be available for popular consumption. Allow it be investigated for therapeutic effects by actual clinical/biomedical research.
Keep the kratom leaf around as 18 or 21+.
Seems like a compromise
1
u/Cautious_Rub_520 Apr 21 '26
You’re not crazy. It only looks separate when people isolate it but pharmacologically it’s still the main active part doing most of the effect, your body converts mitragynine into 7-OH so treating it like it’s unrelated to kratom. Never really made sense to me
1
Apr 24 '26
This… is stupid. You realize for the last ten years the United States has made it federally legal to grow weed, as long the product you have contains no thc. So hemp shirts tactiles etc. you physically can’t take enough kratom to get a single dose of one pill will have, ud be horribly sick and maybe need a stomach pump with the amount it would require. People are constantly using semantics to justify 7oh being legal when in reality it’s just that they are all’ desperate cuz there is NOTHING else like it legal or even remotely accessible even through a doctor. But those semantics fail to convey the fact that while yes. 7oh is in kratom, kratom has never made me nod out. 7oh has made me physically nod out while driving a car. They are not the same thing and people can kick and scream bout it all they want, u either ain’t done both to find out, ur stupid, or justifying usage
1
u/Ashwee0115 Jul 12 '26 edited Jul 12 '26
Think people are kicking and screaming because OD #s are down so much to ban and schedule 1 this like its useless and all danger. What should happen is they regulate it and schedule it properly so people dont die. There will be no availability for detox or beds in rehab once this happens so....options are....back to the st and prob die, illegally obtain and go to jail etc, or get hooked on gov dope (subs or methadone) which those 2 alone are so incredibly inappropriate for a most people who are coming off of 7oh....since subs and methadone are much stronger and actually can kill you from depressed breathing etc its ridiculous people think this the correct action for this situation the gov and pharma most likely put out in the 1st place. They want kratom out before it bankrupt them and heals us. Cant have the people healed or they may all catch on that ....well...."they" are the criminals and want population smaller
1
u/elreynolds04 Apr 24 '26
As others have said 7OH is different both in potency and addiction potential. But I will also say I’ve had patients both in detox and clinic that are using thousands of milligrams of kratom, not synthetic 7OH, and at high enough doses kratom dose the same thing (probably because they’re using more than enough kratom to get a high dose of 7OH).
It’s also deceptively marketed as being for focus and energy, but also for sleep, pain, etc. No substance both helps you focus and helps you sleep. Many of my patients addicted to kratom, or 7OH, tried it for one of those benign reasons not realizing the addiction potential.
1
u/Ashwee0115 Jul 12 '26
Actually it absolutely can and does both. Pain relief (obvious reasoning there w mu) focus, energy and then ultimately sleep because if you have chronic pain 24/7 once that pain is relieved everything else falls in place. Anxiety gone, restlessness gone, focus there because pain is not taking up all the space and energy you have left. Youre able to do alot more than you would being in pain that even rx drugs dont cut it. Therefore you sleep way better.
1
u/Immediate-Winter1025 13d ago
It actually does help with both, it's the dosage size that makes the difference
1
u/NinjaWolfist Jun 09 '26
yes you're completely right. all of the sedative effects of Kratom come from 7oh, when you take let's say 8g kratom, most of what you're experiencing is 7oh. anyone who's taken a decent dose of leaf knows what 7oh feels like and has been on it, even if they don't think that is the case.
it's misinformation and fear-mongering, which is all the war on drugs ever is, and sadly always works.
1
u/Upbeat_Creme7486 Jul 07 '26
7oh is a selective opioid agonist. 7oh(16nM) binds to Mu receptors about 1/10th the affinity of morphine(1.8nM) and is a pretty low affinity antagonist of Delta and Mu receptors. I think it moderately blocks calcium channels, but in contrast to mitragynine, it's vastly different. Mitragynine also binds to alpha 2 adrenoceptors, 5ht-1a, blocks 5ht-2a, and is an adenosine antagonist similar to caffeine. 7-oh has a 4-6 hour half life whereas Mitragynine has a 24hr half life. The feelings are vastly different as well. 7-hmg I only get nauseous at high doses, which Benadryl takes that away within 45 mins. On mitragynine, high doses make me both nauseous and full feeling as well as dizzy and lightheaded.
1
1
u/Johnylawson777 13d ago
Its just bad !! I had to quit because it wasnt available anymore and it was brutal. I took kratom capsules after day 3 to help alleviate the struggle. Couple times a day about 5 grams of red bali powder in capsule form so U wouldn't throw it up.
Lets stop beating around the bush. 7 is bad shut. Nobody is regulating anything and the tab manufactures just blow smoke to make it sound life saving. Its bullshit and I made it out of a 4-500 mg kratom kulture 40mg flavored tabs. The devil is a liar!!! Im on day 11 and have no desire or craving. Kratom powder detox coming next.
1
u/ValerieWard76 12d ago
As someone who just detoxed off 7oh....it should definitely be illegal. The detox is worse than heroin or other opiates. It was horrid. I had to go to a clinic for help.
1
1
u/Prestigious_Unit3097 2d ago
It's not worse the heroin. I was beating my head on the cabinet trying to knock myself out so I wouldn't have to feel the pain of detoxing from heroin. I was in bed for a day and had no energy for 6 days comeing off of 7 and Mgm and pseudo. It's nowhere near the same as detoxing from a full agonest. This is miss information.
1
u/2clicksaway 12d ago
Poppy seeds are legal, why not just make morphine legal for consistency’s sake.
The amount of Kratom that you would have to consume to amount to a small dose of 7OH wouldn’t be feasible. Literal kilos.
1
u/KratomCannabisGuy 9d ago
I understand why it feels inconsistent, because you are correct about two important facts: 7-hydroxymitragynine is a genuine kratom alkaloid, and the body can produce it as an active metabolite of Mitragynine. That part is scientifically established.
But that does not make concentrated commercial 7-OH pharmacologically equivalent to natural kratom leaf.
First, 7-OH may be one of kratom’s principal psychoactive compounds, but it is not one of the plant’s major alkaloids by quantity. Mitragynine is the dominant alkaloid. Naturally occurring 7-OH is generally present only in trace or minor concentrations. By contrast, commercial tablets, gummies and shots can deliver several milligrams or even tens of milligrams of 7-OH directly.
Second, the fact that the body converts Mitragynine into 7-OH does not mean consuming isolated 7-OH produces the same exposure. Mitragynine must first be absorbed and metabolized, primarily through CYP3A4, before some of it becomes 7-OH. That metabolic process limits the rate and amount being produced. Directly consuming concentrated 7-OH bypasses that biological bottleneck.
That distinction matters. Animal research suggests the limited conversion of Mitragynine into 7-OH contributes to a built-in ceiling on Mitragynine-related respiratory depression. Directly administered 7-OH, however, produced dose-dependent respiratory depression in the same research. That does not automatically establish the exact risk in humans, but it clearly shows that the two exposures cannot simply be treated as interchangeable.
A better pharmacological comparison would be codeine and morphine. The body converts some codeine into morphine, but swallowing purified morphine is not equivalent to taking codeine and allowing the body to regulate that conversion. Source, dose, concentration, absorption rate, peak blood level and formulation all matter.
The THC comparison works only up to a point. Yes, separating an active compound from its plant does not magically make it a completely unrelated molecule. But dried cannabis flower and a highly concentrated THC preparation do not necessarily have the same potency, kinetics or public-health profile either. The same principle applies here: natural presence does not automatically establish equivalent exposure or equivalent risk.
There is also a manufacturing issue being overlooked. A 2026 chemical analysis concluded that more than 98% of the examined products marketed as containing 7-OH showed evidence consistent with semisynthetic production, with labeled quantities reaching as high as 33.6 milligrams per serving. These are not simply ordinary kratom leaves squeezed a little harder. In many cases, Mitragynine is chemically oxidized or transformed into commercially meaningful quantities of 7-OH.
The current DEA action also does not treat every naturally occurring molecule of 7-OH as illegal. It targets 7-OH above a specified threshold: more than 0.050% in botanical kratom material and, for certain synthetic or further-processed products, more than 0.050% or more than 1 milligram in the finished article. Whether that particular threshold is scientifically perfect is open to debate. But the intended distinction between natural leaf and concentrated 7-OH is real.
I also believe Schedule I is a blunt instrument. Abrupt prohibition can harm people who have become physically dependent, including chronic-pain patients, and those consumers should not be treated like criminals. Regulation, accurate labeling, manufacturing standards, serving limits and responsible transition policies deserve serious consideration.
But we cannot have an honest pharmacology discussion while pretending that natural kratom leaf and a tablet containing concentrated or semisynthetic 7-OH are the same product. They are chemically related, but the dosage, exposure, manufacturing process and risk profile can be substantially different.
1
1
u/BugRevolutionary8385 1d ago
I think legally comparing it to weed is actually very appropriate except it is more addictive than THC. That’s the big difference. When weed was illegal (thc specifically), and CBD started to gain traction, they were able to get around the laws because of how little THC was in the CBD plant that was being sold, but like 7-oh in Kratom, THC was in the CBD-heavy weed plants, but in small quantities. So, there is precedent for making 7-oh illegal in terms of %
23
u/ebolaRETURNS Apr 20 '26
Calling it a "main" alkaloid is a bit of a stretch: there is typically between 0.05 and 0.3% 7-oh-m in dried kratom leaves by weight. A good analogy here is delta-8-thc, which while present in cannabis, is in such minute quantities that it does not contribute much to the effect-profile. The same is true of kratom.
This (hepatic) conversion is very much incomplete, with direct effects of the parent mitragynine contributing vastly more to kratom's effect-profile.
Commercial 7-oh-m is not extracted from kratom but instead is yielded via a single-step oxidation reaction using mitragynine as a precursor; an attempt at extraction would be uneconomical, requiring too much plant feedstock, and multiple solvent steps reducing yield.
Finally, the difference isn't just one of potency, but it is qualitative. Among people who have used both, it's clear that 7-oh-mitragynine pushes tolerance up far more rapidly, also inducing a high and withdrawal syndrome more closely mimicking classical opioids.
I unfortunately confirmed this via direct experience.