Zopiclone is a nonbenzodiazepine hypnotic of the cyclopyrrolone class, commonly grouped among the 'Z-drugs' that emerged in the 1980s and 1990s as treatments for insomnia. First introduced by Rhône-Poulenc in 1986, it acts on the GABA-benzodiazepine receptor complex despite being structurally unrelated to benzodiazepines or barbiturates. Zopiclone is reported to produce hallucinogenic effects when taken without the intent to sleep and is considered habit-forming. A persistent metallic taste is a commonly noted side effect.
Zopiclona molecular structure diagram from the DrugsPRO substance library.
Also known as: Imovane, Zimovane, Ximovan, Limovan, Rhovane, Somnosan, Siaten, Optidorm, Zileze, Zopitan, Zopiclon-neuraxpharm, Zopiclon AL, Zopiclon Stada, Zopiclon TAD, Nu‑Zopiclone
Classification
Chemical: Medicine
Chemical: Z-drug
Psychoactive: Depressant
Psychoactive: Psychedelic
Tag: Common
Tag: Cyclopyrrolone
Tag: Habit-Forming
Tag: Hallucinogen
Tag: Sedative
Effects
Sedation
Respiratory Depression
Muscle Relaxation
Lethargy
Tiredness
Can Induce Heavy Sleep
Amnesia
Anxiety Suppression
Thought Deceleration
Information Processing Suppression
Euphoria
Compulsive Redosing
Disinhibition
Taste Distortion
Internal Hallucination
External Hallucination
Dulled Perception
Color Enhancement
Routes of Administration
Oral
Dosage
Heavy: 15-22.5 mg
Light: 2.5–3.75 mg
Common: 5 – 7.5 mg
Strong: 7.5 – 15 mg
Threshold: 3.5 mg
Duration
Onset: 0.2-0.5 h
Peak: 3-4 h
After Effects: 1-12 h
Offset: 4-8 h
Total Duration: 6-8 h
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
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Zopiclone - Guia de substâncias DrugsPRO
Zopiclone: Zopiclone is a nonbenzodiazepine hypnotic of the cyclopyrrolone class, commonly grouped among the 'Z-drugs' that emerged in the 1980s and 1990s as treatments for insomnia. First introduced by Rhône-Poulenc in 1986, it acts on the GABA-benzodiazepine receptor complex despite being structur
