Phenibut: What You Need To Know 2

Phenibut: What You Need To Know

Phenibut is a derivative of the inhibitory neurotransmitter GABA. It has been widely used for medical purposes in Russia and former Soviet countries, whereas it is a non-prescription and unapproved (though legal) drug in most other regions.

It has stress-reducing, anxiolytic, and sedative effects. At common doses it is often easier to be alert and functional on it relative to other GABAergic substances like benzodiazepines.

TDC overview page (with references):

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How Phenibut Is Used

Oral (HCl)

Light: 250 – 750 mg
Common: 750 – 1500 mg
Strong: 1500 – 2000+ mg

Oral (FAA)

Common: 500 – 1250 mg


Phenibut Effects Timeline

Oral (HCl)

Total: 10 – 16 hours
Onset: 01:30 – 03:00

Because it has a slow onset, some people believe it’s not working after waiting an hour or two. Do not redose due to believing it’s not going to work after waiting just a couple hours, it often does take up to three hours or longer to really notice the effects.


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