Phenibut: Reviews, Dosage, Effects & Where to Buy

Phenibut is an effective supplement that has been used by athletes and bodybuilders for decades. Recently, it’s use as a nootropic (i.e., brain enhancer) has become more popular among days people all over the world. This article will discuss safety precautions and dosages of phenibut, as well as its effects on cognition and where to buy this drug.

Phenibut is a nootropic that has been around for quite some time. It does not have any negative side effects, but it is also not very potent. The best way to use phenibut is to take the recommended dosage and wait an hour before taking more.

Phenibut: Reviews, Dosage, Effects & Where to Buy

Phenibut is a health supplement that makes you feel more relaxed and allows you to sleep better.

Is it, however, as effective and safe as others claim?

In our Phenibut review, we’ll address these and other concerns, beginning with an overview of the medicine.

What Exactly Is Phenibut?

Phenibut [R] is an anti-anxiety and anti-insomnia drug that works by depressing the central nervous system. It’s also used to treat melancholy, motion sickness, stuttering, and alcoholism in certain people [R].

While it is prescribed in Latvia, Russia, Ukraine, and Kazakhstan, the FDA has not authorized it for medical use in Europe or North America due to the risk of addiction. Nonetheless, many individuals in the United States consume it recreationally for its nootropic properties. Others, on the other hand, utilize it for study purposes.

Name Phenibut
Class Nootropic
Effects Reduces anxiety and stress, boosts motivation, and helps you sleep better.
Possible Negative Effects Headache, nausea, dizziness, and diarrhea
Half-Life 5 hours
Typical Dosage 250 – 500 mg daily
Content 25 g
Price $20.32
Guaranteed money back Case-by-case
Rating u2b50u2b50u2b50u2b50u2606 4.2/5
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What is the Mechanism of Phenibut?

Phenibut is well-known among users for its ability to reduce anxiety and treat post-traumatic stress disorder. This is due to the neurotransmitter GABA (gamma aminobutyric acid) and its molecular structure.


GABA is a brain neurotransmitter that inhibits impulses between nerve cells in the brain. It can be taken as a dietary supplement on its own, but it won’t have as much of an impact since it can’t penetrate the blood-brain barrier.

Phenibut, on the other hand, may pass the blood-brain barrier and activate GABA receptors in the brain, resulting in a feeling of relaxation by reducing neuronal activity.

Phenibut also causes pleasure and satisfaction by stimulating dopamine receptors.

After being processed by the liver, phenibut enters the circulation. It may take 2-4 hours for food to penetrate the blood-brain barrier, depending on the individual’s physiology. The drug’s impact might last up to five hours, depending on the dosage you choose.

Because of these powerful effects, many individuals misuse the drug as a sedative or euphoria-inducing substance that may lead to addiction.

What is the purpose of phenibut?

The medicine is beneficial as a sleeping aid and anti-depressant medication because of its efficacy in lowering emotions, decreasing stress, anxiety levels, soothing the nervous system, and other disorders that induce agitation. Some people use it to alleviate speech impairments like stammering.

Phenibut Effects & Benefits

You may use it for the following things because of its diverse effects:

Treatment for Anxiety

It is often prescribed by Russian doctors as a social anxiety reliever. It may help with anxiety, tension, depression, post-traumatic stress disorder, and asthenia. It may also be used as a sedative for pre- or post-operative pain relief.

Enhancement of cognition

The 50 ADHD teenagers in the one-month trial demonstrated increased sustained attention, self-control, and acoustic-verbal memory after taking daily dosages of 500mg to 700mg. ‍

Many users report that the drug’s nootropic effects help them think more clearly and motivate them. ‍

Sleep Aid

In Russia, doctors often prescribe Phenibut to treat sleeplessness. It is said that it helps their sleep in modest dosages.

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Phenibut Dosage & How to Take

Begin with the smallest dosage that is effective. To get the desired effect, gradually increase the dosage. Because everyone’s physiology is different, the lowest safe dosage will range from person to person.

For anxiety relief, use 250-500mg three times day. You may utilize a maximum single dosage of 750 mg if you are under 60 years old.

If you use more over 4000mg per week, you will have acute toxicity, which might lead to Phenibut dependency or addiction.

Side Effects of Phenibut

You should cycle your Phenibut usage rather than using it constantly to reduce the danger of developing an addiction or Phenibut dependency, as well as other negative effects.

Taking Phenibut while operating equipment might also impair your focus and result in an accident. Additionally, users may report decreased impulse control and tolerance to drinking.

If you are on any antidepressants or pharmaceuticals from the SSRI family, see your doctor before taking this to prevent addiction or side effects.

You may always look for more information on the internet or read case studies from other nations to see how Phenibut affects awareness. There are references to its constituents that allude to patient responses, specifically an erratic heartbeat after administration.


If phenibut addiction develops, the user will suffer severe withdrawal symptoms that will need professional assistance to overcome.

If you’re addicted, you can experience the following withdrawal symptoms:

  • Vomiting and nausea
  • Sweating profusely
  • A strong desire for a Phenibut dosage
  • Diarrhea
  • Hallucinations
  • Fever

Start “tapering” off your Phenibut dosage if you start to experience withdrawal symptoms before your next dose.

Reduce your dosage by 25% each week for the least amount of withdrawal symptoms. If you quit abruptly rather than gradually, withdrawal symptoms might be severe and overpowering.


There is no standard dose for phenibut in the United States since it is unregulated. Many individuals say they don’t know how much to use, which leads to overdoses and addiction that leads to insanity. A building of tolerance may potentially lead to a phenibut overdose.

To get the intended effect, you will need to utilize greater dosages of Phenibut as your tolerance grows. This may lead to you taking a bigger amount than your body can handle, which can lead to Phenibut addiction.

Depending on the dosage, the user’s physiology, and whether or not the user is on any other medications, an overdose may be lethal.

Reddit users share their phenibut experiences.

Here are some comments from Reddit users on their experiences with Phenibut:

rosamundi1975 explains:

“…For me, 1500 mg is a really big amount, the most I’ve ever taken. I suffered nightmares and intense anxiety for two nights thereafter. That being said, I was in great shape before I got off of it! For a lady of average size, 500 to 750 is ideal.”

u/doncheadle13 believes

“… I’ve been using Phenibut for a while now, and it’s made me understand how pessimistic I can be. If you fall off track, phenibut may help you get back on track. When I lose inspiration in life, a little phenibut may remind you of the beautiful things in life, how easy life can be, and how much fun you can have…”

Stacks of Phenibut

Stacking is the process of mixing two or more nootropic pills to increase their effectiveness. You may obtain even greater benefits with Phenibut by stacking it with the correct dietary supplements or products.

Stack for Anxiety and Mood

You may boost Phenibut’s impact and enhance sleep by stacking it with Phosphatidylserine and Bacopa Monnieri on those extremely stressful days.

Phosphatidylserine, 300 mg Bacopa Monnieri, and 250 mg Phenibut are the suggested stack doses for this combination. However, don’t take it for more than a few days at a time since it might develop to tolerance and Phenibut addiction.

Athletic Recovery Stack

Combining Phenibut with L-theanine and Centrophenoxine provides for a wonderful recovery stack if you want that additional boost during your exercises and speedy recovery afterwards. It will raise your endurance, decrease physical discomfort, and increase your energy levels, allowing you to exercise longer and harder.

This stack should be taken with 200 mg L-Theanine, 250 mg Phenibut, and 250 mg Centrophenoxine.

Where can I get Phenibut?

The potency and safety of a medicine are largely determined by its quality. This is especially true when the medicine in issue is unlicensed. PureRawz is a trustworthy merchant that constantly provides high-quality Phenibut batches.

Questions Frequently Asked (FAQ)

We’ve addressed your queries.

How Does Phenibut Make You Feel?

Users say Phenibut makes them feel like they’re intoxicated (euphoria and a better feeling of well-being), but without the grogginess or impaired motor skills that accompany with drug alcohol usage.

How Long Does Phenibut Take to Work?

The length of time it takes is determined on your physiology and if you’ve combined the medicine with other drugs. However, you should anticipate the medicine to start working after two or three hours.

How Long Does Phenibut Keep You Alive?

Again, your physiology and how you utilize the medicine will determine this. However, it usually has a half-life of five hours.

When Do You Start Withdrawing From Phenibut?

Withdrawal symptoms usually appear 24 hours after your last dosage if you have established a Phenibut addiction. The symptoms of withdrawal will become worse until you take another dosage.

What Is the Duration of Phenibut Withdrawal?

The most prominent sign of withdrawal is an insatiable need to take more Phenibut. This, as well as other symptoms including nausea, hallucinations, despair, and others, might linger for days.

How Can Phenibut Work Quicker?

You may hasten the onset by taking it first thing in the morning on an empty stomach. It will work much quicker if you take it sublingually. It will also act faster when combined with caffeine or Theanine.

How Long Does Phenibut Last in the Body?

The overall elimination period is normally approximately 26 hours, based on its average half-life of roughly five hours.

When Should You Take Phenibut?

It should not be used more than twice a week. 250-1000mg capsules or pills twice a week is a healthy dose. However, never take more than 1000mg in one sitting.

Is Phenibut Good for Sleep?

Phenibut’s sedative-like qualities, depending on the dosage, might help you relax and sleep better.

Is Phenibut Effective for Anxiety?

Because phenibut increases dopamine levels in the brain, it is effective at reducing nervousness-inducing central nervous system reactions. It makes users feel nice and peaceful, and it also aids in the reduction of anxiety.


While this chemical is fantastic for raising your confidence, feeling good, and treating anxiety and depression, its physical dependency potential makes it difficult to utilize.

You may try the chemical for its advantages if you can keep to the suggested dosage and don’t have a history of drug misuse.

However, if you are prone to addiction or are currently taking another medicine, Phenibut may not be right for you.

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Phenibut is a drug that has been used to help people with anxiety and insomnia. It is also known as “fennel” or “fenibut”. The drug can be taken in pill form, or by mixing it into drinks. Phenibut does not require a prescription and can be purchased online. Reference: phenibut dangers.

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Michael Walshinaldo