I am a man in my late 30s who has lived many lives. You can scroll to the line if you wish only to read the experience. In my past I have, at some point or other, ingested over 50% of all substances listed on Erowid, plus some that are not.
Diclazepam
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 4 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 27 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Research-chemical
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 4 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 27 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Research-chemical
Aliases: Chlorodiazepam, 2'-chloro-diazepam
Summary
Diclazepam is an unscheduled research chemical benzodiazepine not approved for medical use in most countries. It is structurally related to diazepam but approximately 10 times more potent in animal studies. Its long half-life of approximately 42 hours and active metabolites (delorazepam, lorazepam, lormetazepam) lead to accumulation with repeated use and prolonged effects lasting days.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 0.5-1mg | 1-2mg | 2-4mg | 4mg+ |
Light
Common
Strong
Heavy
Sources
Oral
Dose ladder — dose.wiki, Drugs.WikiBenzo Equivalence Calculator
mg
1.0
mg
Diclazepam
=
β
mg
Diazepam
| Substance | Equivalent Dose | Potency |
|---|
⚠ These are approximate equivalences for educational and cross-tapering reference. Individual response, tolerance, and half-life differences mean actual equivalence varies. Always consult a healthcare provider for tapering guidance.
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 10-90 min | 1-3 hrs | 2-6 hrs | 4-12 hrs | 8-12 hrs |
Effect Profile
8 reportsScores (0–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Benzodiazepine
7.0
Strong+
7/10
Strong anxiolysis with moderate cognitive impairment and euphoria, 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
7
motor control loss
amnesia
delusions of sobriety
Euphoria / Mood Lift
×1
6
physical euphoria
disinhibition
Based on reports from:
Tolerance
Build-up
develops over 1β4 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 Β· Alcohol and Drug Foundation: GHB Β· FDA 2020: benzodiazepine boxed warning Β· FDA 2019: gabapentinoids and breathing Β· NHS: alcohol use disorder
Cross-Tolerances
Other benzodiazepines
Z-drugs (zolpidem, zopiclone)
Effects
Effect glossary — · full glossary
Positive
Negative
Positive
Negative
Negative
Combinations
Cross-Check Diclazepam 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 8 reports 2 positive 2 neutral 4 cautionary visit
With the explosion of 'research chemical' benzos and benzo derivatives/analogues, I've had the opportunity to try a few (namely: etizolam, clonazolam, nifoxipam, and diclazepam) on many occasions.
I took a range of other drugs while under the influence of this drug. I remember taking: 7 gram of base (form of amphetamine in my country) Lots of weed Unsure how much alcohol, about a quarter of a litre of vodka 30mg of Amitriptyline Possibly more, memory was affected I order 50 of these small tablets (1mg each) from...
Steady Hands in the Land of Diclazepam Brief background on my use without sounding snoody: done most recreational pharms particularly stimulants benzos and opiates, am currently prescribed suboxone and have tried and tripped on most common substances and several uncommon ones.
I have had the experience of wanting a particular substance for an event or experience - MDMA for Bonnaroo, maybe, or a joint after a long hike - only to find that somebody forgot to pack a lighter, didn't bring the shrooms, or whatever - and the drugs never made it to their intended destination.
Quick background: Not on any meds, mentally in a good place, exercise semi-regularly, have a pretty terrible diet. Plenty of drug experience, both ΒtraditionalΒ drugs and many RCs. IΒve read countless reports of diclazepam being Βutter shitΒ and Βalmost entirely benignΒ.
Diclazepam 2mg tablets were purchased from a RC vendor, Β£7.50 for x10 2mg tables. They're very small, almost identical in size to 2mg Roche Diazepam. The colour is a blue/mauve mix. Not unlike those old pimento candies. I originally asked my GP for help with coming off codeine.
Diclazepam. I got 120mg of it because I've been using etizolam to combat General anxiety disorder probably brought on by years of last drinking. I don't drink anymore. Etizolam seemed a miracle cure, and is still my favorite RC benzo for effects. It has alot good to be said about it.
Diclazepam's nerd page
Pharmacology, chemical data, effect profiles, and more
→
Helpful Links
Import into PsychonautWiki Journal
The PsychonautWiki Journal app includes Diclazepam, but its built-in data can be thinner than ours. Importing this file adds a separate "Diclazepam (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 "Diclazepam (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 Diclazepam? Let us know. Reports are reviewed by moderators — this is not posted publicly.