Usage Report - Street Nimetazepam in SE Asia I used to (ab)use the black market Nimetazepam in Southeast Asia, circa 2005. Description: Hard, round and flat pinkish tablets with a slight sweet and minty flavour.
Nimetazepam
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 4 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 17 combo interactions documented
- PubChem toxicity data
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 4 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 17 combo interactions documented
- PubChem toxicity data
Aliases: Lavol, Erimin, Hypnon, Happy 5, Erimin-5
Summary
Nimetazepam is a potent intermediate-acting benzodiazepine with rapid onset and high abuse potential. It is primarily prescribed in Asia for severe insomnia and as an anticonvulsant in children. The drug has near 100% oral bioavailability and is the N-methylated analogue of nitrazepam, to which it partially metabolizes.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 2.5-5mg | 5-10mg | 10-20mg | 20mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 15-30 min | 30-60 min | 1-4 hrs | 4-8 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
7.3
Strong+
7/10
Strong anxiolysis, euphoria, and cognitive impairment with mild sedation
Anxiolysis
×3
10
anxiety suppression
anxiolytic
muscle relaxation
muscle relaxant
Sedation / Relaxation
×2
5
sedation
muscle relaxation
Motor / Cognitive Impairment
×1
9
motor control loss
cognitive impairment
amnesia
double vision
Euphoria / Mood Lift
×1
10
euphoria
physical euphoria
disinhibition
Based on reports from:
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Name
Nimetazepam
Unit
mg
Description
Nimetazepam Source: SubstanceSearch (substancesearch.com) Oral dose (mg): light 2.5-5 · common 5-10 · strong 10-20 · heavy 20+ Oral duration: onset 15-30m · come-up 0.5-1h · peak 1-4h · offset 4-8h · total 5-8h · after-effects 12-24h Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.
Tip: for quicker logging you can also add a Custom Unit in the app, e.g. common dose ~ 7.5 mg (Oral).
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Tolerance
Build-up
develops over 1–4 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
14d
Half tolerance
14d
Baseline
~60d
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.
Benzodiazepine tolerance to hypnotic/anxiolytic effects can develop within days to weeks of regular use and decays over weeks with abstinence. Cross‑tolerance across benzodiazepines is expected due to shared GABA(A) positive allosteric modulation; magnitude varies among compounds. Data specific to nimetazepam are limited; figures above are a pragmatic harm‑reduction model rather than clinical PK/PD estimates.
Cross-Tolerances
Effects
Aggregated from 4 Erowid experience reports
Positive Effects 1
Color Enhancement
75.0%
70%
Adverse Effects 0
Combinations
Cross-Check Nimetazepam 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. Tags summarise each author's own verdict — how reports are classified.
Erowid 3 reports 3 neutral visit
My first encounter with this beloved substance of mine was introduced to me by my friends. Sold for $80 for a strip (containing 10 pills, blister packed), I bought two pills (5mg each) off a friend of mine. So did my other friend, let's call him A.
This is my first experience with benzos. Prices range from 8-10 bucks per pill, or 80 dollars for a slab (10 pills). I bought 2 pills from a friend of mine. He suggested me to put the pills under my tongue while sipping some redbull until it dissolves. The redbull can be substituted with espresso according to him.
Nimetazepam's nerd page
Pharmacology, chemical data, effect profiles, and more
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Helpful Links
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