F-Phenibut
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Also known as F-Phenibut, Fluorophenibut, Fluorobut
Addiction potential
moderately physically and psychologically addictive
Toxicity
low toxicity; potentially lethal when mixed with depressants like alcohol, benzodiazepines or opioids; exact toxic dosage is unknown
Tolerance
full tolerance within a couple of days of continuous use; baseline after 7 - 14 days
Cross-tolerance
GABA
Oral
Route dataPsychonautWiki
| Threshold | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| 50 mg | 100–150 mg | 150–400 mg | 400–600 mg | 600 mg+ |
0750 mg
LightCommonStrongHeavy
| Onset | 20–60 minutes |
|---|---|
| Total | 6–8 hours |
OnsetCome-upPeakOffset
Dangerous interactions
Caution / uncertain
Plan when to take F-Phenibut — see where onset, peak and comedown land on the clock
Plan a dose of F-Phenibut
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Source: PsychonautWiki — F-Phenibut ↗
Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.