[Apologies for the length. Blame profs and editors more interested in word count than anything else. There is something resembling a summary further down, in [these] square brackets.] I've taken Imovane [aka zopiclone] off and on for about ten years.
Zopiclone
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, PubChem)
- 4 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 27 combo interactions documented
- toxicity data (PsychonautWiki, PubChem)
Aliases: Imovane, Zimovane
Summary
Zopiclone is a non-benzodiazepine hypnotic intended for short-term insomnia treatment (2-4 weeks maximum). It produces significantly more amnesia and disinhibition than benzodiazepines at comparable doses. A characteristic metallic or bitter taste occurs in many users.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 3.5-5mg | 5-7.5mg | 7.5-15mg | 15mg+ |
Sources
Oral
Dose ladder — PsychonautWikiOnset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 10-30 min | 30-60 min | 3-4 hrs | 2-4 hrs | 6-9 hrs |
Effect Profile
23 reportsScores (0–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Validated against 23 Erowid trip reports
- Weighted by importance: core (×3), major (×2), minor (×1)
Strong anxiolysis, sedation, and euphoria with strong cognitive impairment
Tolerance
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
Effects
Aggregated from 23 single-substance Erowid experience reports; 21 Erowid reports where another drug was taken too are left out
Each bar shows the share of analyzed reports whose text mentions that effect — a mention is not always a first-hand experience (fear of an effect or something witnessed can count). Mentions saying the effect did not happen are left out; that check reads keywords, so it can miss some. The shaded band on a bar, and the small range after its number, is the 95% interval: where the share could plausibly be with other reports of the same kind. Fewer reports, wider band. Tap or hover any number for details. The second value is the Bluelight extractor's per-effect confidence; a dash means the row is Erowid-derived, which has no confidence measurement.
Effect glossary — · full glossary
Positive Effects 4
Adverse Effects 5
Also reported in combinations. In the 21 Zopiclone reports where another drug was taken too, 2 (9.5%) mention hospital, emergency services or an overdose, 0 (0.0%) a seizure and 3 (14.3%) psychosis. In the 23 single-substance reports: 4.3%, 0.0% and 0.0%. These are not in the figures above: they cannot be put down to Zopiclone alone, and a mention is not always something that happened to the writer.
Combinations
Cross-Check Zopiclone 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 1 neutral 7 cautionary visit
PERSONAL INFO: I am an 18 year old female who weighs 140lbs. My boyfriend is 17 years old and also weighs 140lbs. Neither of us are experienced in taking prescription medication - the only substances we have taken are cannabis and alcohol.
I am a 34yo male, reformed alcoholic/drug user, however have the occasional play around with pills etc. I have not consumed alcohol for 4 years and have been away from street drugs + pot for even longer. I had a rather large cache of these pills (Zopiclone aka Imovane) and experimented over a couple of months.
I was prescribed this recently to help me sleep, my psychiatrist has me on it for a long-term prescription since weaker sleep aids didn't work for me, although I've heard this shouldn't be prescribed long-term.
I have a history of drug abuse, I had the most trouble with benzos and opiates. I've used everything from weed to heroin to strange RC dissociates that 99% of normal people have never heard of. Before this experience I had a recent 2 years of sobriety.
I was prescribed the sleeping aid Zopiclone a few weeks ago. I'd been mentioning problems sleeping to my doctor for a few months and while mostly truthful, I must admit I had the intent to try whatever was given to me recreationally.
Creativity on Zopiclone I was prescribed Zopiclone by my psychiatrist to help with my sleep. I have had a number of mental health issues in the past few years, and have been on quite a few drugs (anti psychotics, anti-depressants, anti-anxiety meds ).
I should be dead. If things happened the way I think they did, I should be dead. But one of the effects of Imovane is loss of memory, so I am piecing together my story after the fact. I am a chronic insomniac. I can never get to sleep without the aid of some medication.
Bluelight 3 threads 2 neutral 1 cautionary visit
zopiclone 15mg - highly experienced - trippy hypnosis Taken 20:40-45 T15 effects . anxiety not just gone, it's not even a concept that makes sense to me. Talking manically to my mother about the nature of psychedelics, DMT, aliens after we all saw some weird lights outside our house. Definatley not baseline.
So there was no innate decision to trip on this faithful night, in fact, I had just received my 3 month script off zoppys (15mg per night), and after acquiring said tablets ventured home (the short way) to immerse myself in some gaba-loving.
This summer, i was visiting a good friend whom i've known since we both were 7. While i have been experimenting with various psychoactive substances since i was 17, he had only smoked weed 3 times and not done any other substance besides alcohol.
Helpful Links
Import into PsychonautWiki Journal
The PsychonautWiki Journal app includes Zopiclone, but its built-in data can be thinner than ours. Importing this file adds a separate "Zopiclone (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.
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 Zopiclone? Let us know. Reports are reviewed by moderators — this is not posted publicly.