Laden…
Phenibut is a substance from the class of phenethylamines. Further information will follow after enrichment.
Class
Depressiva
Pharmacological context
Mechanism
Phenibut (β-Phenyl-GABA) ist ein strukturelles GABA-Analogon mit...
Short read on known pharmacology
Interactions
No curated pairs visible
Curated visible combinations
Risk theme
Interpret risks carefully
Condensed from structured notes
Translation in progress
The German version has more complete content. This English page is being expanded; safety-critical risk and interaction sections may still appear while translation continues.
Receptor Targets
Mechanism of Action
Designations
IUPAC: 4-amino-3-phenyl-butyric acid
Legal Status
Legal status not verified by official sources. Please check current legislation independently.
Information without guarantee. Not legal advice.
Synapedia Evidence
Effects & Pharmacology is partially translated. Some details are still being expanded.
Phenibut (β-Phenyl-GABA) ist ein strukturelles GABA-Analogon mit zentraler ZNS-Aktivität. Im Gegensatz zu Gabapentin erreicht die β-Phenylgruppe eine ausreichende Lipophilie für den Blut-Hirn-Schranken-Übertritt. Primärer mechanism of action: Agonismus am GABA-B-Rezeptor (Gi-Protein-gekoppelt), analog zu Baclofen — hemmt die präsynaptische Kalziumkanalöffnung und moduliert Kaliumkanäle (Hyperpolarisierung). Bei höheren Dosen (>1000mg) zusätzlich schwache Modulation von GABA-A-Rezeptoren, was zur Sedierung und Anxiolyse beiträgt. Dopaminerge Aktivität (D2-Modulation oder indirekte Aktivierung) erklärt euphorische und stimulierende Effekte bei niedrigen Dosen — dieser Mechanismus unterscheidet Phenibut klar von reinen Anxiolytika und erklärt das deutlich höhere Abhängigkeitspotential im Vergleich zu Baclofen. Wirkeintritt langsam (1-2h), duration sehr lang (8-16h) — dies führt häufig zu unbeabsichtigter Akkumulation bei Mehrfachdosierung.
Known Effects
Individual effects may vary significantly. These are pharmacologically documented effects.
Reported range 500–1000 mg
Total duration 6–12 hours
Oral
| Tier | Dosage |
|---|---|
| Light | 250–500 mg |
| Reported | 500–1000 mg |
| Strong | 1000–1500 mg |
Oral
Onset
1–2 hours
Peak
2–4 hours
Total duration
6–12 hours
After effects
2–6 hours
Avoid uncertain dosage claims and do not infer numbers when data is unclear.
Dose sensitivity varies greatly between individuals. Body weight, tolerance, route of administration, combinations, and pre-existing conditions significantly affect outcomes. These figures are not dosing recommendations — they describe reported ranges, not safe amounts.
Risks
Safer Use
The risks listed may be incomplete. Especially for research chemicals and rare substances, available data is limited.
Interaction details from the knowledge layer are still being translated.
Interaction data is based on known mechanisms. Unknown or rare interactions are possible and may be life-threatening.
Based on substance class, receptors, mechanisms, and effect profile.
This information is for scientific and harm-reduction purposes only. It does not constitute medical advice.
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