How to Take Phenibut Properly | A-Z Guide

Curious how to take Phenibut?

If so, then you’re in the right place.

Phenibut is a well-researched nootropic and is clearly very effective [1]. It’s actually used in several countries as an anti-anxiety medication, as a sleep aid, and as a way to boost cognitive processes. Lots of users report that it can be a great way to relax at parties, get a restful sleep, and generally be in a good mood.

But while it’s an effective and inexpensive way to give yourself an edge in social situations, it can be a bit confusing to know exactly how  to take Phenibut.

There are multiple types, varying dosing strategies, and several routes of ingestion.

P.S: Click here to order Phenibut from the top vendor online!

We’re here to clear it up for you. We’ll explain what it is, what some of the side effects are, how much Phenibut to take, and more.

Get settled and let’s get to it.

P.S: It should come as no surprise that I’m not a doctor or a lawyer. This is not legal or medical advice. The information presented on this site is purely entertainment. Always consult a medical professional before consuming any nootropics. Full disclaimer.

What is Phenibut?

Before we get to how to take Phenibut, let’s talk a bit about what it is.

Phenibut is a psychotropic drug, which means it can change your mental state and mood [1]. It’s prescribed in several countries, like Russia, Ukraine, and Belarus, as medication for several disorders [1].

The chemical make-up of Phenibut is β‐phenyl‐γ‐aminobutyric acid HCl [2]. It works by mimicking a neurotransmitter, GABA [3]. Neurotransmitters are chemicals that are produced in our nervous system. They are important because they help bind to receptors in the nervous system to send signals. They’re part of the system in which our brain controls and regulates our body.

The Role of GABA in the Body

GABA stands for gamma-aminobutyric acid [4]. It is one of the body’s major inhibitory neurotransmitters, which means it turns off neurons and reduces excitability of the body. Think about it like a car: you want to turn the car on when you need it, but you need to turn the car off when you don’t need it.

Other neurotransmitters bind to receptors on nervous system cells to turn on signals to different parts of the body. They do this, for example, when we sense a threat. Neurotransmitters and hormones get sent out to get our body ready for action.

GABA then turns them off when we no longer need to be “activated”. GABA helps revert back to our resting state so that we’re not in a constant state of stress [5]. It is involved in a bunch of processes to relax our body and for sleep.

Phenibut Mimics GABA

Phenibut is a “GABA analog” which means that it is chemically very similar to GABA. It can bind to many of the same cells that GABA does and therefore have the same effect on the body: reducing neuron stimulation and excitability [1]. That’s why it is so effective as a relaxant for the brain and why it is so effective in helping us sleep better. It’s a key to turning off the brain.

It also has a few other interesting effects. For example, at low levels, it also seems to increase the levels of dopamine in the brain. Dopamine is another neurotransmitter. It’s associated with the pleasure centers of the brain. So by increasing dopamine levels [5], Phenibut can make us feel good.

Users report that it even gives a bit of a “high” [2].

Effects of Phenibut

So what are the benefits and clinical effects of Phenibut? Well, there seems to be quite a few. As an approved medical treatment in several Eastern European countries, Phenibut is used to treat [5, 6]:

  • Anxiety
  • Depression
  • Sleep disorders
  • Post-traumatic stress disorder
  • Stuttering
  • Vestibular disorders

Those are the medical uses. But there are also lots of people that take it recreationally [5]. These individuals may also use it for a number of reasons, but among them are:

  • to reduce social anxiety
  • improved sociability
  • to help get a good night sleep
  • to boost mood
  • for concentration

Now, if all the science isn’t what you’re after, here’s what you need to know:

Phenibut will put you in a great mood!

You’ll feel social when taking this smart drug and happy. It’s like drinking, but without any of the negative side effects from alcohol.

Phenibut Side Effects and Safety

It sounds great, but are there any side effects? Is it safe to use?

Yes, it’s generally considered safe to use both by the doctors that prescribe it and by most people [1].

But, like pretty much anything, there is a possibility of side effects [2]. Also, there can be some negative effects if you take way more than the right dose or if you take it with similar substances. And finally, you have to be a bit careful not to become dependent on it.

These are all things you have to be aware of with anything, but it’s obviously important to get all the details before taking something. So here are those details.

Side Effects of Phenibut and Allergies

Side effects are quite uncommon, but they can occur. A quick list of some of the side effects that have been most often reported include [2]:

  • Drowsiness
  • Nausea
  • Irritability
  • Headache
  • Sedation

Sometimes, but less often, people using a lot of Phenibut can see:

  • Motor incoordination
  • Hangover-like symptoms
  • Loss of balance

How do you avoid side effects? Don’t take too much and stick to normal doses. See the next section for Phenibut dosing suggestions.

It’s also possible to see allergic reactions from taking it. These usually appear as skin itching and rashes.

If you experience any of these side effects stop taking Phenibut and speak to your doctor.


While no one has ever died from taking too much Phenibut [1, 6, 7], even taking as much as 8 grams a day [8] you still should try not to take too much. Stick to the suggested dosing and you’ll be fine. Some of the effects if you take too much of it can include [6]:

  • Severe drowsiness
  • Nausea
  • Vomiting
  • Lowered blood pressure
  • Impairment of the kidneys
  • Fatty liver degeneration

These are unpleasant, but it’s super easy to avoid taking too much. Again, we’ll go over dosing guidelines below, but generally you shouldn’t be taking more than:

  • 1 gram in a single dose
  • 2 grams per day total

If you stay below that, you’ll be fine.

Interaction Effects

The other thing is to make sure you don’t mix Phenibut with other substances that have the same effects because they could have interaction effects [6].

Phenibut is a “depressant” meaning that it “depresses” or “slows down” your nervous system. So you should avoid taking it with other depressants that also slow down your nervous system. These include [7]:

  • Alcohol
  • Benzodiazepines
  • Anti-convulsant medications
  • Anti-psychotic medications
  • Opioids
  • Sedatives
  • Anti-anxiety medications

If you combine Phenibut with any of those, it could cause them to be more powerful or last longer and could be a problem.

Again, this is easy to avoid. Just don’t take Phenibut with any of those and you’ll be golden.

Phenibut Dependence

Last, you should be careful with Phenibut dependence [3, 4]. This occurs when you take it regularly and your body gets used to it to the point that it stops making its own GABA and begins to need Phenibut [7].

At this point, stopping yourself from taking it can lead to unpleasant withdrawal effects.

If you have an addictive personality, you might want to stay away from Phenibut. Also, make sure you don’t take it more than 2 or 3 times a week, and cycle off it every once in a while.

If you follow all that guidance, you should be good to go.

Phenibut HCL powder

How to Take Phenibut | Beginner’s Guide

How you take Phenibut depends on what kind you buy.

There are two different types of Phenibut: Phenibut FAA and Phenibut HCL.

  • Phenibut FAA: This is Phenibut just as a pure, free amino acid (FAA). It usually comes in a powder or a capsule. It’s a bit more expensive. It has a higher concentration of Phenibut by weight. You generally need a bit lower of a Phenibut dosage in this form.
  • Phenibut HCL: This is Phenibut that has been made into a salt with HCL. It comes as capsules or as crystals. It’s the most common form, it’s usually a bit cheaper, and it has a lower concentration of Phenibut by weight. You generally need a bit higher of a Phenibut dosage in this form.

In both types, the Phenibut itself is the exact same. It’s just mixed differently and you take it differently.

Ways to Take Phenibut

There are four main ways that you can take Phenibut.

  • Swallow Phenibut capsules. How to take Phenibut powder? You can swallow them with liquid or on its own. Works for both FAA and HCL.
  • Mix it with liquid and drink it. If you buy powder (FAA) or crystals (HCL), you can mix it in a liquid and drink it. Remember that the FAA doesn’t mix well, so it might be clumpy.
  • Sublingually. You can put Phenibut FAA under your tongue and wait for it to dissolve. Don’t do this with Phenibut HCL.
  • Injection. Very few people use this method outside of a medical context. It’s not recommended. Seriously, don’t do it!

Make sure to take it on an empty stomach. And don’t eat for an hour afterward. This allows the body to properly ingest Phenibut and see maximum results.

How to Take Phenibut FAA

Phenibut FAA generally comes as a capsule or a powder. Here’s how to take Phenibut FAA:

  • Swallow the capsule. It takes a while for it to kick in—usually about 2 hours. Take it in the morning to boost mood, and at night for better sleep.
  • Mix powder with a drink. This doesn’t work super well, because it’s not ionic, so it doesn’t mix in water very well. It’s clumpy. Still, you can take it this way.
  • Sublingually. With Phenibut FAA you can put it under the tongue and wait for it to dissolve. It takes some time, and it doesn’t taste great… but it will work faster if you use this method.

It won’t work well with food, so don’t eat before taking it and wait for an hour before eating again after you take it.

How to Take Phenibut HCL

Here’s how to take Phenibut HCL.

  • Dissolve it in a drink. Phenibut HCL is a chemical salt, so it dissolves easily in water and other beverages. This is one of the easiest ways to take it.
  • Swallow a capsule. This is another easy way to take it that’s also effective.

Don’t use the sublingual method with Phenibut HCL. It’s acidic, so it’ll be bad for your teeth. Also, because it’s acidic, the taste is really strong.

This is the easiest form of Phenibut to take, and HIGHLY recommended.

How Much Phenibut to Take?

Maybe you don’t know how much Phenibut to take. I got you.

How much to take depends on a few factors: what effect the “test subject” wants, how big they are, their age, and what type they’re taking. We actually have a Phenibut dosing guide with much more information.

But here, we’ll provide the basics for someone starting out and who just wants a nice, safe time.

For Phenibut FAA, beginners can start with:

  • 250mg to 350mg
  • split into 1 to 3 doses per day
  • Take on an empty stomach at least an hour before food

For Phenibut HCL, beginners can start with:

  • 350mg to 500mg
  • split into 1 to 3 doses per day
  • Take on an empty stomach at least an hour before food

By following these Phenibut dosing protocols, you’ll see maximum social and creative benefits with the nootropic — while minimizing any side effects and risks.

How Long Does It Take For Phenibut to Kick In?

So now you’ve taken it… how long does it take for Phenibut to kick in?

Typically, it takes about 2 hours for Phenibut to kick in. But it depends a bit on how you take it. Also, its effects are kind of subtle, so it might be working earlier, but you don’t notice.

The Phenibut half-life is about 5 or 6 hours [5], which means that the concentration in your body will go down by about half in that time. So it lasts quite a while.

Some people say that it usually lasts about 5 hours before a user starts feeling the effects going away. But others say that the effects can last 24 hours [5].

Don’t worry, it’s not like alcohol! It’s not going to negatively affect your performance on anything. So if it lasts a long time, it’s usually not a bad thing.


Buying Phenibut Online | 2020 Guide

Phenibut is totally legal to buy online — as long as you’re not in Australia, Lithuania, or Hungary.

It’s easy to buy online, and much easier than finding it in a brick and mortar store. Since it’s not approved as a medication in most countries, you’re not going to find it at a pharmacy. And you can’t get a prescription unless you live in Russia, Belarus, Ukraine, Kazakhstan, or Latvia.

Buying it online is the best way to get Phenibut. As such, this is the best place in the world to buy Phenibut:

Just click here.

How to Take Phenibut | Verdict

Users report incredible effects from Phenibut. They feel more sociable, relaxed, and they sleep better. Often they report feeling significantly less social anxiety. They also report feeling significant improvement in mood—and even a bit euphoric.

That’s probably why you’re curious about…

How to take Phenibut properly.

But it can be a bit difficult to understand how to take Phenibut at first. Once you do it, though, it’s easy. Basically, most people take it in capsules. If they buy Phenibut HCL, it’s also common to put it in a drink. With Phenibut FAA, you can also put it under the tongue.

Click here to get your hands on some today.


  1. Lapin I. (2001). Phenibut (beta-phenyl-GABA): a tranquilizer and nootropic drug. CNS drug reviews, 7(4), 471–481. doi:10.1111/j.1527-3458.2001.tb00211.x
  2. Cheung, J. & Penn, J. (2018). Weekly dose: Phenibut. The Conversation.
  3. Ahuja, T., Mgbako, O., Katzman, C., & Grossman, A. (2018). Phenibut (β-Phenyl-γ-aminobutyric Acid) Dependence and Management of Withdrawal: Emerging Nootropics of Abuse. Case reports in psychiatry, 2018. doi:10.1155/2018/9864285
  4. Högberg, L., Szabó, I., & Ruusa, J. (2013). Psychotic symptoms during Phenibut (beta-phenyl-gamma-aminobutyric acid) withdrawal. Journal of Substance Use, 18(4), 335-338.
  5. Owen, D. R., Wood, D. M., Archer, J. R., & Dargan, P. I. (2016). Phenibut (4‐amino‐3‐phenyl‐butyric acid): Availability, prevalence of use, desired effects and acute toxicity. Drug and alcohol review, 35(5), 591-596.
  6. Ozon Pharm (n.d.), Fenibut (PDF). [In Russian].
  7. Hardman, M. I., Sprung, J., & Weingarten, T. N. (2019). Acute phenibut withdrawal: A comprehensive literature review and illustrative case report. Bosnian Journal of Basic Medical Sciences, 19(2), 125.
  8. Samokhvalov, A. V., Paton-Gay, C. L., Balchand, K., & Rehm, J. (2013). Phenibut dependence. Case Reports, 2013, bcr2012008381.

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