Gabapentinoids against anxiety. Extraordinary Phenibut

Paracelsus

Addictionist
Joined
Nov 23, 2021
Messages
258
Reaction score
279
Points
63
18sdFE4xDn


Today we will talk about a group of substances that have interesting mechanisms of action and multiple applications as a sedative, anti-anxiety and hypnotic. We will talk about gabapentinoids in general, and their unusual representative - phenibut.

Why might it be interesting for Breaking Bad users? In my opinion, anxiety is one of the problems that accompanies today not only people whose lives are associated with risk, psychoactive substances and hard work, but also almost everyone in general. We live in a time of great changes and paradigm shifts. This is a very interesting time. But it can be unpleasant for the psyche and subjective perception of life.

Usually the anxiety is silenced with tranquilizers, but in my opinion these are too drastic measures. I don't like tranquilizers because of their side effects and high, for a medical substance, addictive potential. They need to be used when other methods do not help. Therefore, I want to draw your attention to another group of drugs. They are more accessible, less addictive and, with the right approach, can help to get rid of anxiety manifestations both in everyday life and when using substances or during recovery activities.


Gabapentinoids

Gabapentinoids are a class of drugs that vaguely resemble the neurotransmitter gamma-aminobutyric acid (GABA) (i.e. GABA analogues). Although they were designed to mimic the action of GABA, more recent studies have found that they affected another target, the A2D subunit of calcium channels. Two gabapentinoids are approved by the FDA: gabapentin and pregabalin. Several more are currently being tested (imagabalin), others are being used in scientific research (atagabalin).

Gabapentin has been a universal drug since 2004. It is commonly used for seizures, nervous pains, alcoholism, drug addiction, itching, restless legs, sleep disorders and anxiety. It has an unusually wide range of doses: recommendations suggest using from 100 mg to 3600 mg per day. Most doctors use it at a low level, where it is quite inconspicuous (read: it usually doesn't work). At the highest level, it can cause sedation, confusion and addiction.


DnuoyKrdU5

The mechanism of action of pregabalin. It modulates hyperexcited neurons via the following mechanism:
Pregabalin binds to presynaptic neurons at the alpha2-delta (α 2-δ) subunit of voltage-gated calcium channels.
Drug binding reduces calcium influx into presynaptic terminals. Decreased calcium influx reduces excessive release
of excitatory neurotransmitters (eg, glutamate, substance P, noradrenaline).


From the point of view of the scientists who analyzed pregabalin, it definitely does the same thing as gabapentin. But in practice, it often turns out that gabapentin does not seem to work so well. Patients, even with minimal manifestations of anxiety, cannot do with gabapentin alone. While studies confirm that pregabalin is great for anxiety. At the same time, gabapentin shows itself well only in some cases, such as social phobia. It is not effective for panic or agoraphobia, and in the case of generalized anxiety disorder, it shows itself only in combination with tranquilizers. Why this happens is still unclear.

One possibility is that the dosages of these substances taken are incorrect. UpToDate recommends treating anxiety disorders with gabapentin, using an initial dose of 600 mg per day. But it recommends 300 mg of pregabalin per day. This dosage table assumes that 1 mg of pregabalin = 5 mg of gabapentin, so 300 mg of pregabalin = 1500 mg of gabapentin! Perhaps what they think of as a ”high dose" of gabapentin coincides with what we think of as a ”low dose" of pregabalin. Maybe all the doses of gabapentin are just too small? This is an open question, but not a recommendation to consume more gabapentin. Do not forget that more mgs - more risks of adverse reactions.

Another possible reason is some obscure pharmacological mechanism. In one study, we tried to compare the pharmacology of two drugs. They say that the body can easily absorb pregabalin, but has a limited ability to absorb gabapentin – the more gabapentin, the less the percentage is absorbed.

Another important difference: gabapentin is usually not a controlled substance or less controlled, but pregabalin is technically addictive, but it's not worth worrying too much about. Although it is theoretically possible to become addicted to gabapentin, if you take a really large dose and try very hard, you should be desperate even by the standards of drug addicts. There are many more cases of dependence on pregabalin, although most experts agree that this is still quite unusual. One of the likely culprits is the rate of absorption: pregabalin is absorbed in about an hour, gabapentin - in three or four. Fast-acting substances are always more addictive; they peak higher and earlier, and it is easier for the brain to associate the stimulus (taking the drug) with the reaction (feeling good).



Phenibut

91DuRroLT3


According to the Classification System of Anatomical Therapeutic Chemistry (ATC), phenibut is consistently included in the groups of analeptics, psychostimulants, ADHD medications and nootropics. Already at this stage, strange things begin. Earlier we talked explicitly about anti-anxiety, tranquilizing, and therefore sedating effects, but here we see the opposite - phenibut is referred to as a stimulant.

In most countries, phenibut is sold without a prescription. Moreover, it is often sold not as a medical drug, but as a dietary supplement in stores, not pharmacies. I do not recommend buying phenibut in stores or online in powder form or without normal medicinal packaging - it is not known what you will take inside in this scenario. It is worth buying phenibut in pharmacies or at least in packages under the licensed names Phenibut, Phenibut, Noofen, Citrocard.

It's funny that the FDA sometimes asks people to stop selling it, but they never got serious and it's still easily available on the open internet. But in some countries in recent years it has been made prescription. This applies primarily to the countries of the former Soviet Union. I had a funny thought that the availability of phenibut reflects the level of freedom in society. As long as it is freely available, you can relax. But enough jokes, let's continue.

With regard to social anxiety, prevention of panic reactions, agoraphobia, generalized anxiety, phenibut often shows very good results. In addition, it can give a hard-to-describe feeling of calm and well-being.

Early research into phenibut focused on GABA, the main inhibitory neurotransmitter. The brain has two kinds of GABA receptors, GABA-A and GABA-B. Alcohol, Xanax, Valium, Ambien, barbituates, and the other classic sedatives all hit GABA-A. There aren’t that many chemicals that hit GABA-B, and the few that are out there tend to be kind of weird – one of them fell to Earth on a meteorite. But phenibut is a GABA-B agonist. This sounds like a neat solution to the mystery: a drug with unique anti-anxiety properties affects a unique inhibitory receptor. But another GABA-B agonist, baclofen, has minimal anti-anxiety effects. It is mostly just a boring muscle relaxant (there was some excitement over a possibility that it might cure alcoholism, but the latest studies say no). So probably GABA-B on its own doesn’t explain phenibut.

As for the place of phenibut in the classification by mechanism of action, today it refers to both GABA receptor agonists and gabapentinoids. The fact that phenibut acts as a gabapentinoid has been discovered relatively recently. I found articles from 2015 that point to this. Until that time, phenibut was considered only as an agonist of the GABAB receptor. But its gabapentinoid activity is much weaker than that of gabapentin itself, so why should its effect be stronger?

Baclofen is superior to phenibut as a GABA-B agonist, and gabapentin is superior to phenibut as a gabapentinoid, but phenibut works better than either of them. Magic! Could this be a synergistic effect between two different actions? If this were true, we would expect that the combined intake of gabapentin and baclofen would have an effect similar to phenibut. But these drugs are sometimes used for the same neuromuscular diseases, and no one has ever noticed anything unusual. I'd love to see how it's being studied, but I don't expect much.

Phenibut has two enantiomers, r-phenibut and s-phenibut. Both are decent gabapentinoids, but only r-phenibut has GABA-B activity. If both worked equally well, that would suggest phenibut worked on A2D; if r-phenibut worked better, that would implicate GABA. Someone think that phenibut is probably more GABA-B agonist than gabapentinoid, but этоне объясняет explain why it’s so different from baclofen.

There is the point that baclofen has some issues with blood-brain barrier permeability. Although some of it gets through, it could build up in the plasma much faster than in the brain, giving it disproportionately peripheral effects.


Recommendations

Phenibut shows its effectiveness in anxiety, fear, obsessive states, insomnia and nightmares, dizziness. In states of abstinence from alcohol, stimulants or euphoretics. In these cases, the medicine should be taken by the course.

A single dose for adults is 20 - 750 mg. 20 mg seems to be too small a dose, in my practice I started with 65 and reached 250 mg. The optimal dose for me is 125 mg. It is better to start with a minimum. Usually the drug is taken 3 times a day: in the morning in the afternoon and in the evening. The maximum daily dose should not exceed 2.5 g (if a person is more than 8 and less than 60 years old).

It is worth taking phenibut for 2-3 weeks, you can extend the course up to 6 weeks. With prolonged use and high dosages, it is necessary to monitor liver function indicators and the biochemical picture of peripheral blood. Between courses, it is worth taking a break of 2-4 weeks. After taking the drug for a long time, it is better to stop gradually.

Needless to say, phenibut is potentially addictive and can seriously ruin your life. The conventional wisdom in the phenibut user community is that you can safely take 500 mg once a week (or maybe every two weeks). Anything that goes beyond that and you quickly develop tolerance. Increase the dose to combat tolerance, and you will start feeling worse on the days when you don't take it, using it more and more to compensate for the rebound, and eventually get withdrawal syndrome, closely related to delirium tremens, which sometimes kills recovering alcoholics.

Phenibut lengthens and enhances the effect of hypnotics, narcotic analgesics, antiepileptic, antipsychotic and antiparkinsonian drugs. Also, it should not be mixed with alcohol and exclude or at least reduce the consumption of the latter during the course of phenibut.

Phenibut should not be consumed if you have stomach problems - it has a strong irritating effect on the mucous membrane. At a minimum, it is worth reducing the dosage if you feel increased heartburn or unpleasant sensations in the stomach.

As for the use of stimulants, euphoretics, cannabis, cannabinoids, psychedelics. In general, all substances that directly or indirectly increase anxiety under certain circumstances. Phenibut can reduce these manifestations. Both for those who have them caused directly by use, and for those who experience post-effects. In these cases, it is worth taking phenibut in a single dosage for adults of 20 - 750 mg. Unfortunately, the dosage will have to be selected independently - phenibut acts quite individually and is very heterogeneous for different people. We adhere to the rule: We start with the smallest single dose. We paint up to the working dose. We do not raise it higher.

A couple cases for example:
1. A person uses cannabis, but has recently been experiencing panic reactions when using it. A break, a change of grade, set and settings do not help. Take 60-125-250 mg of phenibut 20-30 minutes before the planned smoking (here and further indicate the possible dosage ranges).

2. The person had a session with stimulants or euphoretics. Does not plan to wait out this day. He wants to go away and rest. He is afraid of phenomena characteristic of the termination of the action of these substances. Take 250-375-500 mg of phenibut once. Drink mineral water without gas in small portions. Eliminate physical exertion, strong visual, auditory and stressful stimuls.

Phenibut is recreationaly taken for its anxiolytic and euphoric properties, with tolerance and withdrawal syndromes commonly reported adverse effects. It`s taken orally at an average dose of 2.4 g - it`s huge dose, really. Case reports in the medical literature feature users who present to emergency departments heavily sedated or experiencing withdrawal. There have been no reported deaths relating to phenibut use. I recommend using it only according to the indications and in the dosages described above or after consulting with a doctor.

Be calm and understand what you are going to do with your own neurochemistry.
As always, I invite everyone interested to a discussion.
Thank you for your time.
 

HIGGS BOSSON

Expert
Joined
Jul 5, 2021
Messages
602
Solutions
1
Reaction score
803
Points
93
Working in an underground laboratory carries legal risks. Many develop paranoia against this background, if you engage in illegal activities for a long time. Will Phenibut help get rid of the paranoia associated with the police?
 

mycelium

Don't buy from me
Resident
Language
🇺🇸
Joined
Nov 17, 2024
Messages
196
Solutions
1
Reaction score
54
Points
28
Holy shit I thought I was the only one with pig-o-phobia
 

Paracelsus

Addictionist
Joined
Nov 23, 2021
Messages
258
Reaction score
279
Points
63
In my opinion, phenibut can help. He does not remove paranoia, because it islogical and real in the described situation. But it (like other gabapentinoids) can help with anxiety, fear-mongering, concentration. This will allow a person to do things more efficiently, spend time outside of work more calmly and improve the quality of life. For this option, the course plan, which is described in the topic, is suitable. This is not a panacea, but an option.
 

blacky2340

Don't buy from me
Resident
Language
🇺🇸
Joined
Sep 28, 2023
Messages
36
Reaction score
29
Points
18
I personally am on pregabalin which was initially offered to me by a friend who is a doctor for getting better quality sleep. I take 150mg of pregabalin in the morning/day which boosts my mood and does reduce anxiety, but nothing like a cure. Before sleep 250-300mg does knock me out so bad that I can do a line of speed on it and it will still knock me out cold. First time I took it before sleep was the first time I had a dream that actually made sense to me and was meaningful as well, I'm not sure I ever had better sleep. (I have an affective mood disorder, I am able to go a week without sleep until hallucinating vividly, which is really hard on me)
Have not tried phenibut or gabapentin, but I'm sure they work in a similiar way.
 

Paracelsus

Addictionist
Joined
Nov 23, 2021
Messages
258
Reaction score
279
Points
63
That's right, all this substances belong to Gabapentinoids. However, their mechanisms of action may differ. This also leads to differences in effects and effectiveness. Sometimes insignificant, sometimes pronounced. However, using them on a regular basis, it is better to avoid increasing the dosage, and if the effects begin to weaken, it is worth considering the option to take break to avoid the development of tolerance and withdrawal syndrome. It can be unpleasant, but it is quite realistic to carry it at home. The situation, of course, may be complicated by the existing specificities of your neurochemistry.
 

finch3523

Don't buy from me
Resident
Language
🇺🇸
Joined
Nov 11, 2022
Messages
37
Reaction score
5
Points
8
I think phenibut seems to interact more with stimulants like dexamphetamine compared to baclofen or pregabalin. I think it does increase dopamine much more when combined with amphetamines. to the point that you get tics, if you overdo it combined with not sleeping.

I also think the good mood and sharp cognition effect is some dopamine effect? If you take phenibut you need a lower stimulant dose. you might not even need one at all. just relax and still feel as if you have lots of dopamine.

I also know somebody personally who takes phenibut since years in doses of above 10g per day and his blood work shows normal. also read of other similar individuals on reddit. but there is a lot fear mongering about phenibut from individuals who are already very anxious and desperate before taking phenibut. which creates also a kind of self fullfilling prophecy.

I also think that high doses of phenibut over prolonged time seem not really detrimental.

You can taper down with baclofen or pregabalin. Have no experience with benzos.

But the basis would be good sleep, physical activity and good general health. And lots and lots of proteins.

Bodybuilders also seem to like it. I heard it might be because it increases growth hormone secretion while sleeping deeper. Training hard and resting deeper. Actually when you take phenibut before sleep and then really sleep well, then the next day you will feel amazing.

I noticed that for activities the effect of phenibut works especially well with something like guarana or coffeine. The feeling of well being and cognition enhancement is really increased. Also your physical and mental endurance is very increased....

I really would be interested in what hormones and repair mechanisms phenibut drives up.

I also read about experiments with cats where they put the animals in chamber with nervous gas. the ones who had phenibut in their blood took quite longer until their nervous system disintegrated.

If I do sauna on phenibut I noticed I can stay in sauna for very unusual long time. similarly for cold water exposure.

I also read that some parkinson patients added phenibut to their l-dopa after the l-dopa lost effect. with phenibut the l-dopa suddenly had effect again... which seems to confirm my observation of interaction with stimulants or for replacement on stimulant free days.

What you really should not do is just withdraw phenibut very quickly after you strained your body and mind with more extreme activities. especially when also not sleeping much. you should continue phenibut and take really really good amount of sleep and let phenibut help your body rebuild itself to full or stronger capacity quickly. then maybe do some exercise. and always a lot of proteins so the body has enough substrate to repair and rebuild without eating your muscles or other structures up. then you can reduce phenibut.

In my experience if you reduce or remove phenibut at the wrong point or way too quickly you will impair restoration and will suffer and damage yourself unnecessarily. if no phenibut is at hand then as said use baclofen or pregabalin. maybe have a tiny dose of quetiapine at hand (helps sleep quickly). If you start to put alcohol into the mix you will have bad outcomes. Then I think you might get bad withdrawals. I think body might not be able to regenerate quickly and the alcohol might also impair ability of the brain to reset itself. You can end up a long time sleepless which will end up in more and more fucked up withdrawals the longer you cannot sleep and restore mind and body.

very nice is always adding phenibut to all kind of other substances as basis. e.g. mdma. increases the effects and also lets you experience no comedowns whatever shit you did.

I noticed when looking tired and wrinkled after sleepless nights, then adding phenibut makes your skin suddenly look young, no eyebags, sharp eyes. Not sure what this is. Is this something dopamine related? do meth users also observe this? have not much experience with meth. only with d-amphetamine. Are these hormones? Is this just general energy output? increased cell metabolism efficiency??? providing energy and clearing the crap out???
 
Last edited:

Paracelsus

Addictionist
Joined
Nov 23, 2021
Messages
258
Reaction score
279
Points
63
Phenibut has been shown to increase dopamine release in certain brain regions, such as the striatum, which could explain the enhanced mood, sharp cognition, and reduced need for stimulants that you described. This effect may synergize with amphetamines or l-dopa, amplifying their dopaminergic action and possibly leading to overstimulation (e.g., tics in cases of overuse). When combined with stimulants like d-amphetamine, phenibut’s calming yet dopamine-enhancing effects may reduce the need for higher stimulant doses.

Phenibut has been reported to stimulate growth hormone (GH) release during deep sleep. This could explain why bodybuilders and athletes find it beneficial—it enhances muscle repair, recovery, and anabolism during sleep cycles. The improved appearance you’ve noted after taking phenibut (e.g., reduced wrinkles, sharper eyes) could result from better hydration, blood flow, and possibly reduced cortisol levels, which phenibut may modulate via its calming effects. Increased tolerance for sauna and cold exposure might be linked to phenibut’s effects on stress response systems, possibly mediated by GABAergic and dopaminergic pathways.

You’ve identified an essential consideration regarding phenibut withdrawal:
Abrupt cessation can lead to severe GABAergic withdrawal symptoms, including insomnia, anxiety, and potentially seizures, due to receptor downregulation. As you suggested, tapering with baclofen or pregabalin (both also GABA_B receptor modulators) is an effective strategy. Emphasizing good sleep, physical activity, and adequate protein intake during withdrawal is excellent advice, as these support neurotransmitter synthesis (e.g., GABA, dopamine) and physical recovery.

Phenibut Safety at High Doses
While anecdotal reports suggest some people tolerate high doses, chronic high-dose use carries risks, including:
  • Tolerance and Dependence: Over time, receptors downregulate, requiring higher doses for the same effect.
  • Potential Neurotoxicity: high doses could disrupt normal neural signaling or lead to excitotoxicity during withdrawal.
  • Variable Impacts on Organ Health: Normal blood work isn’t always reflective of subtle, cumulative damage to organs like the liver or kidneys.

Phenibut’s ability to influence dopamine, growth hormone, and stress systems provides a basis for many of your observations. However, caution is warranted regarding high doses and combinations with other substances due to the risks of dependence, withdrawal, and overstimulation.
 

finch3523

Don't buy from me
Resident
Language
🇺🇸
Joined
Nov 11, 2022
Messages
37
Reaction score
5
Points
8
hey nice writing style ;) I also wanted to ask if you run your answer through AI first? I think AI is nice for summarizing things well that you or someone said and also give new ideas. But I noticed for such fringe stuff or grey area related to health experimentation that AI is often just retelling the conventional wisdom approach that sounds a bit like the following: "What you do is is dangerous, its good stay in a safe area like the following...".

I would find it interesting if AI would give suggestions and ideas that go more into these grey or as "dangerous" considered areas and challenges them with new perspectives... Kind of a biohacker AI model. Because I am sure there are lots of anecdotes and sciences that are very valuable to get a full picture and are not heard by mainstream science or are even suppressed because it would challenge their view of something (e.g. similar to Karl Hart with his opinion about different drugs e.g. methamphetamine).

I think if AI would do this then there would come out a different picture. Probably some more holistic one that would also show all kind of different routes of performance enhancing while still teaching you how to make sure that you would stay healthy and how to observe and measure it...
Instead I noticed the AI does seem to always try to lead me back to stay in lane of what most people are saying about the substance...

Is it understandable what I mean?

Any idea on how to get more perspectives and knowledge about phenibut? Maybe the AI can be prompted differently, or there are models that have different ethical filters, or there are models that are made in a way to find and build these ideas?

Also regarding damage for liver and kidneys... Are there not all kind of blood markers for subtle or more severe damage to these two organs? I mean if you did do a good weightlifting session a couple of days before your bloodwork then all this also shows up in the blood panels (lots of docs dont know this and think you have liver or heart damage which is super ridiculous and really shows how bad informed mainstream docs are)...

Before I once did a big panel with many many metrics... There were kidney markers and lots of other stuff I never heard about before... Had to run the stuff through AI to get a bit of explanation of what this actually is...

Any idea which markers could be used here with phenibut that are really sensitive to early changes?

Lastly there is also this whole addiction mainstream thinking... I think the picture of addiction in mainstream science (ok I am not 100% sure what the current mainstream paradigm is, if its disease model or dysfunctional behavioural loops or whatever) is really flawed... I noticed that if you can do deeper shifts in thinking and kind of restructure some things more coherent on a personal level that integrates more things to make you more functional or have more holistic view on your life (maybe with help of psychedelic agents or similar) then it might be very well the case that you could sometimes almost instantly reduce high oder higher intake of substances to a much lower level... At least I noticed this... Ok also maybe depends also on more context factors e.g. if you have good health or fucked up health... But you can look at this story here share on the website of MAPS (Multidisciplinary Association For Psychedelic Institute) to get a feel for it: https://shorturl.at/6z4Wu
I think there are so many blind spots and excluded perspectives when discussing substances and then platforms like reddit are echo chambers that prime or frame the mind of the readers... and this leads to the kind of self fullfilling prophecies that kind of confirm the mainstream science stuff that is based on the principles: 'better dont do this, this is dangerous. you harmed yourself, you are criminal and sick, take our by "science" supported medicine. other perspective we dont know and they are not supported'
ok maybe I kind of exaggerate a bit to make my point clear ;) Although my personal experiences with the system were like this.... And I think AI currently has a lot of these tendencies to support such mainstream views also and not really challenges them enough or gives new impulses for discovery.

Or to say the whole thing a bit shorter... I think a lot of science or the evaluation of the science for all of this made from people with a frame of mind that is coming from a perspective of "fear and stigma" and are leaving a lot of things out that might be visible or discoverable from a different frame of mind that is more curious, open and challenging of existing ideas.

Btw do you have any personal experiences with phenibut and any cool insights from it?

thx!!!
 
Top