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Fluorophenibut

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Subjective Effects
Pharmacology
Interactions
Fluorophenibut molecule structureFluorophenibut molecule structure
Chemical Class
Gabapentinoid

Fluorophenibut is a fluorinated analogue of phenibut with anxiolytic and depressant properties. Structurally related to GABA, it is reported to produce effects similar to its parent compound but at significantly lower doses, with estimates suggesting it is approximately 5 to 10 times more potent than phenibut. Preliminary anecdotal reports suggest that tolerance may develop more slowly compared to phenibut. As with other GABAergic depressants, it carries a risk of habit formation.

Dosage & Duration

Dosage

Doses are population estimates that vary widely between individuals.

Threshold~50 mg
Light50-100 mg
Moderate100-150 mg
Strong200-250 mg
Heavy250+ mg

Duration

Onset60-120 minutes
After Effects1-8 hours
Total8-12 hours

Subjective Effects

Subjective Effects not written up yet

Pharmacology

Pharmacology not written up yet

Interactions

Interactions not written up yet

An unlisted combination is an unknown one, not a safe one. Check a dedicated combination chart before mixing.

Check TripSit

Tolerance

Tolerance timelines are rules of thumb, not exact schedules, and vary widely between individuals and use patterns.

Full Tolerance
Preliminary reports suggest tolerance may develop more slowly compared to phenibut, though specific timelines have not been established.
Cross Tolerance

GABAergic depressants, Phenibut and related analogues

Harm Potential

Addiction & Dependence

Psychological

Classified as habit-forming, suggesting potential for psychological dependence.

History & Culture

Fluorophenibut, assigned the developmental code CGP-11130, is a synthetic GABA analogue that was investigated as a potential pharmaceutical agent but never reached the commercial market. The compound belongs to a family of structurally related phenyl-substituted GABA derivatives that includes…

Legality

By Country

Illegal2
Hungary flagHungaryIllegal
Lithuania flagLithuaniaIllegal

References

Citations

  1. 78/2022. (XII. 28.) BM rendelet az ellenőrzött anyagokról — current consolidated text dated 2026.06.29. njt.jog.gov.hu (n.d.). https://njt.jog.gov.hu/jogszabaly/2022-78-20-0A1
  2. 66/2012. (IV. 2.) Korm. rendelet — current consolidated text dated 2026.01.01. njt.jog.gov.hu (n.d.). https://njt.jog.gov.hu/jogszabaly/2012-66-20-221
  3. PubChem PUG REST — CID 103611 compound identifiers. pubchem.ncbi.nlm.nih.gov (n.d.). https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/103611/property/Title,IUPACName,MolecularFormula,InChIKey/JSON1
  4. Lietuvos Respublikos sveikatos apsaugos ministro įsakymas Nr. 5 „Dėl narkotinių ir psichotropinių medžiagų sąrašų patvirtinimo“ — current consolidated text. e-seimas.lrs.lt (n.d.). https://e-seimas.lrs.lt/rs/actualedition/TAIS.94030/EjAEksbqRo/1
  5. Lietuvos Respublikos narkotinių ir psichotropinių medžiagų kontrolės įstatymas Nr. VIII-602 — Articles 2 and 8. e-seimas.lrs.lt (n.d.). https://e-seimas.lrs.lt/rs/actualedition/TAIS.48770/dbhKmMISzP/1
  6. Sveikatos apsaugos ministro 2019 m. gruodžio 11 d. įsakymas Nr. V-1431. e-seimas.lrs.lt (n.d.). https://e-seimas.lrs.lt/rs/legalact/TAD/9aff1ef11ce911eaadfcfdb735b57421/1

Article Status

  • Josie Kins avatar
    Step 1 · Automated synthesis

    An autonomous workflow built by Josie Kins compiled this article's foundation from information published across the web.

  • Step 2 · First-pass reviewPending

    Not yet reviewed — this article is pending editorial review by Lyrea.

  • Step 3 · Citation reviewPending

    No one has reviewed this article's citations yet. That second pass checks each claim against the source it cites.

Recent changes7 human edits · latest

Times are UTCNewest first

24 January 2026

  1. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  2. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  3. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  4. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  5. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  6. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

  7. Josie Kins · Updated the article · also 1,4-Butanediol, 1B-LSD, 1cP-AL-LAD and 573 more

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