Flunitrazolam 200ug When testing a new benzo related compound, I always make small report in which I write down everything I do, who I talk to and about what. The reason being that I can check my writings the next day to see if there are any holes in my memory.
Flunitrazolam
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 4 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 27 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Tentative
- classified Research-chemical
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 4 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 27 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Tentative
- classified Research-chemical
Aliases: Fln, Fntz, Flunazolam
Summary
Flunitrazolam is a novel lesser-known depressant substance of the benzodiazepine class. It has been noted for its unusual potency for a benzodiazepine compound, being active in the low microgram range. This trait is also shared by compounds such as flubromazolam and clonazolam.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 0.1-0.2mg | 0.2-0.3mg | 0.3-0.5mg | 0.5mg+ |
Light
Common
Strong
Heavy
Sources· 1 of 1 ladders not fully identified
Oral
Dose ladder — Light–Strong: PsychonautWiki · Heavy: not identifiedOnset, Duration & After-effects
| ROA | Onset | Peak | Offset | Total |
|---|---|---|---|---|
| Oral | 20-40 min | 1-2 hrs | 2-4 hrs | 4-5 hrs |
Effect Profile
3 reportsScores (0–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Benzodiazepine
6.6
Strong+
7/10
Strong anxiolysis with strong cognitive impairment, moderate euphoria, mild sedation
Anxiolysis
×3
10
anxiety suppression
anxiolytic
muscle relaxation
muscle relaxant
Sedation / Relaxation
×2
5
sedation
muscle relaxation
Motor / Cognitive Impairment
×1
10
motor control loss
amnesia
memory suppression
delusions of sobriety
double vision
Euphoria / Mood Lift
×1
6
euphoria
disinhibition
Based on reports from:
Tolerance
Build-up
develops over 1–4 weeks of daily use; hypnotic tolerance faster than anxiolytic tolerance
Reset
Falls after you stop, at a rate that varies from person to person. If you've been using regularly, cut down gradually with medical help rather than stopping suddenly.
No tolerance chart. Our decay curves for these drugs were estimates, and a curve can make tolerance look longer-lasting than it is, which is the dangerous direction.
How fast tolerance to these drugs fades after a break has not been measured well enough to draw, so don't count on a dose you used to take still being safe: after time off, start with a much smaller amount and don't use alone. Mixing sedatives with each other, with alcohol or with opioids sharply raises the risk of a fatal overdose. If you've been using regularly, don't stop suddenly: withdrawal from benzodiazepines, alcohol or GHB/GBL can cause seizures or delirium, so get medical help to cut down gradually.
Sources: FRANK: benzodiazepines · Alcohol and Drug Foundation: GHB · FDA 2020: benzodiazepine boxed warning · FDA 2019: gabapentinoids and breathing · NHS: alcohol use disorder
Cross-Tolerances
Other benzodiazepines
Thienodiazepines (e.g., etizolam)
Non‑benzodiazepine Z‑drugs
Effects
Effect glossary — · full glossary
Positive
Negative
Positive
Negative
Positive
Negative
Combinations
Cross-Check Flunitrazolam with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, Bluelight, and Dose.wiki. Click a source to expand. Reports are harm-reduction context, not medical guidance. Tags summarise each author's own verdict — how reports are classified.
Erowid 3 reports 1 neutral 2 cautionary visit
With scarce information and experience reports on the new research chemical Flunitrazolam, I feel obligated to reveal my experience with this very unique drug. Prior Benzo use - Ativan, Xanax, Clonazolam, and Etizolam. I must say, this is the ONLY one that actually worked for sleep.
I'm right now on day 5 of my horrific withdrawal from Flunitrazolam and I'm only now able to even type anything on the PC. It was horrible but rather quick, today I only feel maybe slightly weird, barely noticable and I'm just glad I survived this.
Flunitrazolam's nerd page
Pharmacology, chemical data, effect profiles, and more
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Helpful Links
Import into PsychonautWiki Journal
The PsychonautWiki Journal app includes Flunitrazolam, but its built-in data can be thinner than ours. Importing this file adds a separate "Flunitrazolam (Substance Search)" custom substance with our dose ranges and durations, so you can log against whichever you prefer. It leaves tolerance out on purpose, for the reason given under Tolerance above.
⬇ Download import file
Import this file as custom substances
and you get "Flunitrazolam (Substance Search)" with every
route's full dose ladder and timeline, no typing. Works on iOS and
Android (v15+); the format is confirmed by the app's
developer.
Ranges are harm-reduction guidance, not a prescription.
Report an issue or suggest an edit
Spotted incorrect or dangerous information, have a correction, a new study, or a useful addition for Flunitrazolam? Let us know. Reports are reviewed by moderators — this is not posted publicly.