Phenibut Faa
The short answer. There isn't much data on Phenibut Faa yet — 6 mentions, 2 with a clear outcome — so treat these numbers as anecdotal. We found no human trials on PubMed.
From 6 mentions in total — the rest didn't say how it went and aren't counted.
What Phenibut Faa does, according to users
Of the people who reported each effect, the share who said it got better.
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
No randomized controlled trials in humans found on PubMed. The grade measures how much human research exists — read the conclusions below for what it found.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.
“one of the dirtiest feeling substances I have taken, caused severe respiratory depression, no improvement in anxiety, could not sleep for days to follow”
“250 Mg Phenibut FAA (cycled every other day)...gives me the mental clarity and sharpness I need to address my typical ADHD sypmtoms.”
Top discussions (5)
- My journey with supplements this far ↗
- Best place for responsible users to buy phenibut since nootropicsdepot discontinued it? ↗
- On vacation and mixed up my adrafinil and phenibut capsules. Which capsule is bigger? ↗
- F-Phenibut? ↗
- Why doesn’t ND carry faa phenibut? Curious to try it but I only order supplements from ND anymore because it is the only brand I have confidence in the legitimacy of. ↗
Other options for anxiety
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 3, 2026. How we rate