GHB / GBL
Phenibut FAA (Free Amino Acid)
Street names: Phenibut FAA, P-FAA
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Same as phenibut: anxiolysis, euphoria, sociability
⚠Key risks
- Same brutal withdrawal (anxiety, insomnia, psychosis, seizures)
- FAA form marketed as 'stronger' — overdose temptation
- Supplement-label loophole = no regulation
- Teens buying 'nootropic' stacks containing phenibut unknowingly
✚Overdose signs
- Extreme sedation
- Slow breathing (with other depressants)
- Agitation in withdrawal
📋Quick facts
Also known asPhenibut FAA, P-FAA
CategoryGHB / GBL
Schedule / classUnscheduled; sold as supplement (illegally)
AppearanceWhite crystalline powder — 'free amino acid' form marketed as more potent
Street price$20–$50 per 50g
Legal statusUnscheduled; supplement sales violate FDA rules
Last updated2026-09-17
Sources: FDA, NIDA
Category comparison — GHB / GBL
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| Phenibut FAA (Free Amino Acid) | Unscheduled; sold as supplement | Same brutal withdrawal (anxiety, insomnia, psychosis, seizures); FAA form marketed as 'stronger' — overdose temptation | $20–$50 per 50g |
| Phenibut | Not scheduled US | RAPID TOLERANCE — daily use creates dependence in 2–3 weeks; Withdrawal is BRUTAL and dangerous: severe anxiety, insomnia, hallucinations, psychosis, seizures — worse than benzodiazepine withdrawal for some | ~$20–$50 per 50g powder |
| Alprazolam (Xanax 2 mg) | Schedule IV | Dependence within weeks; brutal withdrawal (seizures risk); Counterfeit 'bars' increasingly contain fentanyl or bromazolam | ~$2–$10 per 2 mg bar |
Street prices are regional estimates. Potency and cuts vary constantly.
?Frequently asked questions
What does Phenibut FAA (Free Amino Acid) look like?
White crystalline powder — 'free amino acid' form marketed as more potent
What are the signs of a Phenibut FAA (Free Amino Acid) overdose?
Extreme sedation; Slow breathing (with other depressants); Agitation in withdrawal Call emergency services immediately.
How addictive is it?
Same brutal withdrawal (anxiety, insomnia, psychosis, seizures) Withdrawal can be life-threatening — medical tapering is essential.