Phenibut Capsules

Phenibut Capsules

Phenibut capsules are typically used as an anxiolytic, sleep aid, and general nootropic. Phenibut is a derivitative of the neurotransmitter GABA.

Phenibut is a staple in many nootropic arsenals as a way to increase mental clarity by mitigating anxiety and stress . It’s anxiolytic properties boost the mood of many users, leading to a more productive and focused mind-state, unhindered by stress.

While phenibut has many benefits and utilities, it must be used with caution as tolerance and withdrawal symptoms are reported in some users when taken improperly. Consulting a licensed medical professional as well as keeping to a stable dosing regimen can help ensure neither of these are a cause for concern.

Why phenibut capsules?


Phenibut capsules ensure a uniform dose with little stress or hassle. Using phenibut capsules as opposed to other forms can help ensure consistent dosing and delivery.

Phenibut capsules act on the inhibitory neurotransmitter GABA in the brain, which on its own cannot cross the blood brain barrier.

GABAnergic activity is typically associated with a subjective feeling of calming and relaxing.  

Phenibut capsules allow the GABA molecule to permeate the blood brain barrier, via the addition of the phenyl ring.

Stimulating both GABA-A as well as GABA-B receptors, phenibut is non-selective.

This activity can also be found in substances such as alcohol as well as benzodiazepines, which should never be mixed with phenibut under any circumstances .

Phenibut Effects

In addition to their anxiolytic effect, phenibut  has also shown evidence of cardio-protective benefits. The decreased anxiety users experience seems to mitigate catecholamines and other stress hormones responsible for raising blood pressure, and heart rate.

Phenibut helps many users move past the mental roadblock of “paralysis by analysis”. Stress and worry can lead us to making nervous, anxious mistakes which are often costs. Phenibut capsules can help users make more sound, composed decisions free from the spectre of anxiety.

Users also report benefits related to social anxiety and shyness, as the decreased anxiety lessens inhibitions and feelings of hesitation.

As the racetams were derived from GABA, early research showed promising signs of GABAnergic activity having nootropic and cognitive enhancing properties, which should logically carry over to phenibut as well, although this assertion remains to be explored conclusively by researchers.

Phenibut capsules are often used by people seeking a more restful night’s sleep. The decreased anxiety and inhibition of overthinking allow many users to fall asleep more easily, and remain sleeping more peacefully.

Phenibut Side Effects

Despite it’s many benefits, users should always exercise caution when taking phenibut capsules and consult a licensed medical professional before beginning any supplement. While many users expereince only positive results from phenibut use, taking quantities outside of the recommended range and without a consistent dosing protocol can lead to tolerance and dependence.

Phenibut should never be combined with alcohol, benzodiazepines, or any other product exerting GABAnergic activity.



Containing a phenyl ring, phenibut is able to cross the blood brain barrier where GABA alone cannot. Developed in the soviet union during the 60’s, phenibut capsules have since been used pharmaceutical in various applications, related to anxiety, depression, insomnia, alcoholism, vestibular disorders and stuttering.  In addition to their anxiolytic applications, phenibut has been shown in research to posesses nootropic qualities as well. Phenibut [β-phenyl-γ-aminobutyric acid (β-phenyl-GABA)], a GABA analogue, is a CNS depressant derived from the inhibitory neurotransmitter γ-aminobutyric acid GABA.

Structurally analogous to GABA, phenibut capsules also possess structural similarity to pregabalin (β-isobutyl-GABA) GABOB (β-hydroxy-GABA) and baclofen (β-(4-chlorophenyl)-GABA). Phenibut capsules are considered to be gabapentinoids.

Happy Biohacking




(or, alternatively, fenibut, phenybut) (brand name Noofen, Citrocard),


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