The below tests were run in isolation of any other substances. I have no benzodiazepine tolerance, although I have previously taken pharmaceutical lorazepam 1mg and clonazepam 0.25mg, both to good effect.
Bromazolam
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- 2 ROAs with full dose ladders
- duration data present
- 17 combo interactions documented
- classified Tentative
- classified Research-chemical
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- 2 ROAs with full dose ladders
- duration data present
- 17 combo interactions documented
- classified Tentative
- classified Research-chemical
Aliases: Brom, Bromaz, Xli-268, xli268
Summary
Bromazolam is a potent designer benzodiazepine structurally analogous to alprazolam (Xanax), never approved for medical use. It is commonly found in counterfeit pharmaceutical tablets and pressed pills sold as alprazolam or diazepam. Combining with other CNS depressants greatly increases overdose risk, respiratory depression, and death.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 0.5-1mg | 1-2mg | 2-4mg | 4mg+ |
| Sublingual | 0.5-1mg | 1-2mg | 2-4mg | 4mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 15-45 min | 30-60 min | 2-4 hrs | 2-6 hrs | 5-8 hrs |
| Sublingual | 10-30 min | 20-45 min | 2-4 hrs | 2-6 hrs | 5-8 hrs |
Effect Profile
4 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Benzodiazepine
7.1
Strong+
7/10
Strong anxiolysis, cognitive impairment, and euphoria with mild sedation
Anxiolysis
×3
10
anxiety suppression
anxiolytic
muscle relaxation
muscle relaxant
emotion suppression
Sedation / Relaxation
×2
5
sedation
muscle relaxation
Motor / Cognitive Impairment
×1
10
motor control loss
memory suppression
amnesia
delusions of sobriety
double vision
Euphoria / Mood Lift
×1
10
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
Acute tolerance: develops within a single session โ the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Cross-Tolerances
Benzodiazepines
Alprazolam
85%
Diazepam
85%
Clonazepam
85%
Lorazepam
85%
Etizolam
85%
Clonazolam
85%
Flualprazolam
85%
Flubromazolam
85%
Effects
Aggregated from 4 Erowid experience reports
Positive Effects 1
Sedation
75.0%
70%
Adverse Effects 1
Confusion
75.0%
70%
Combinations
Cross-Check Bromazolam with another substanceCommunity 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 3 reports 1 neutral 2 cautionary visit
Dose (oral solution): 0.12 mg bromazolam (3 drops) 0.16 mg bromazolam (4 drops) 0.24 mg bromazolam (6 drops) 0.24 mg bromazolam (6 drops) Total 0.76 mg bromazolam (19 drops) This is report of my first time using this substance. Background: 45 yr old male with no benzo tolerance.
Unfortunately I didnยt record exact times or dosages for an accurate report so this is a general overview. First dose: Saturday evening around 6-8pm ROA: I was using a bottle of 10mg/ml solution of Bromazolam, which tasted terrible so I would put 2 drops at a time in the food I was eating to avoid the taste.
Bromazolam's nerd page
Pharmacology, chemical data, effect profiles, and more
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