After waiting for what seemed like forever, I finally got my hands on some 4-fluorococaine from an online retailer. I had read that it was '60 times stronger than cocaine' so planned my doses accordingly small, in the 10-20 mg range (I have experience doing this with a knife to dose 2C-I, so I was fairly confident abou...
4-Fluorococaine
Limited data
Limited data
Sparse data. Doses and effects may be unreliable or untested.
- 1 source
- no dose data
Limited data
Sparse data. Doses and effects may be unreliable or untested.
- 1 source
- no dose data
Summary
4-Fluorococaine is a stimulant. Reported effects include euphoria, color enhancement, time distortion, and wakefulness. Limited data is available on its dosage and safety profile.
Effect Profile
1 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Stimulant
6.5
Strong
6/10
Strong euphoria and anxiety/jitters with moderate focus and stimulation
Stimulation / Energy
×3
6
stimulation
wakefulness
alertness enhancement
Euphoria / Mood Lift
×2
10
physical euphoria
euphoria
cognitive euphoria
motivation enhancement
Focus / Productivity
×2
7
focus enhancement
motivation enhancement
thought acceleration
Anxiety / Jitters
×1
10
anxiety
increased heart rate
teeth grinding
vasoconstriction
Based on reports from:
Tolerance
Build-up
develops over days to weeks of regular use
Reset
3–7 days for acute tolerance; longer for full reset
Tolerance Decay
Full tolerance
1d
Half tolerance
10d
Baseline
~18d
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
Positive
- Stimulation
- Physical euphoria
Negative
- Increased heart rate
- Vasoconstriction
- Insomnia
- Teeth grinding
- Pupil dilation
- Nausea
- Increased perspiration
- Decreased appetite
Positive
- Alertness enhancement
- Euphoria
- Wakefulness
- Motivation enhancement
- Cognitive euphoria
- Focus enhancement
Negative
- Anxiety
- Talkativeness
- Time distortion
- Thought acceleration
Positive
- Increased music appreciation
- Tactile enhancement
- Increased libido
- Color enhancement
- Enhanced tactile sensation
Negative
- Light sensitivity
- Appetite suppression
- Dehydration
- Disinhibition
- Drifting
Community Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.
Erowid 1 report 1 neutral visit
Bluelight 1 thread 1 neutral visit
Edit: I have no evidence to suggest the substance described below actually was 4-FC. Please be very careful and suspicious with any substance labeled as 4-FC. Note that this Trip report probably does not accurately describe an actual 4-FC experience. Substance info Substance: 4'-Fluorococaine. Dosage.
4-Fluorococaine's nerd page
Pharmacology, chemical data, effect profiles, and more
→
Helpful Links
Report an issue or suggest an edit
Spotted incorrect or dangerous information, have a correction, a new study, or a useful addition for 4-Fluorococaine? Let us know. Reports are reviewed by moderators — this is not posted publicly.