Flualprazolam
Aliases: F-alp, Flualp, 2'-fluoro-alprazolam
Summary
Flualprazolam is a highly potent designer benzodiazepine that is 1.5-5 times stronger than alprazolam by weight. It is typically sold as counterfeit alprazolam (Xanax) tablets or as a research chemical. Accurate weighing with a precise milligram scale is critical due to extreme potency.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 0.1-0.3mg | 0.3-0.5mg | 0.5-1mg | 1mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Peak | Offset | Total |
|---|---|---|---|---|
| Oral | 20-40 min | 1-2 hrs | 2-6 hrs | 3.3-8.7 hrs |
Effect Profile
7 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Benzodiazepine
7.7
Intense
8/10
Strong anxiolysis, euphoria, and cognitive impairment with moderate sedation
Anxiolysis
×3
10
anxiety suppression
anxiolytic
muscle relaxation
muscle relaxant
emotion suppression
Sedation / Relaxation
×2
6
sedation
muscle relaxation
Motor / Cognitive Impairment
×1
8
motor control loss
memory suppression
delusions of sobriety
double vision
Euphoria / Mood Lift
×1
10
cognitive euphoria
physical euphoria
disinhibition
Based on reports from:
Tolerance
Build-up
develops over 1โ4 weeks of daily use; hypnotic tolerance faster than anxiolytic tolerance
Reset
weeks to months depending on half-life and duration of use; taper recommended
Tolerance Decay
Full tolerance
3d
Half tolerance
37d
Baseline
~60d
Cross-Tolerances
Benzodiazepines
Alprazolam
85%
Diazepam
85%
Clonazepam
85%
Lorazepam
85%
Etizolam
85%
Bromazolam
85%
Clonazolam
85%
Flubromazolam
85%
Effects
Aggregated from 7 Erowid experience reports
Positive Effects 2
Sedation
57.1%
70%
Euphoria
42.9%
70%
Adverse Effects 1
Memory Suppression
57.1%
70%
Combinations
Flualprazolam's nerd page
Pharmacology, chemical data, effect profiles, and more
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