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Meclonazepam

Meclonazepam is a benzodiazepine derivative structurally related to clonazepam, first developed by Hoffmann-La Roche during the 1960s. It was initially investigated for potential antiparasitic applications, particularly in the treatment of schistosomiasis. Although it has appeared on the grey market as a recreational depressant, it has not achieved widespread use. As with other benzodiazepines, meclonazepam is considered habit-forming and carries the risk of physical dependence with repeated administration.

Meclonazepam molecular structure
Meclonazepam molecular structure diagram from the DrugsPRO substance library.

Also known as: Methylclonazepam, 3-Methylclonazepam

Classification

  • Chemical: Benzodiazepine
  • Chemical: Medicine
  • Psychoactive: Depressant
  • Tag: 1,4-Benzodiazepine
  • Tag: Anticonvulsant
  • Tag: Anxiolytic
  • Tag: GABAergic
  • Tag: Habit-Forming
  • Tag: Muscle Relaxant
  • Tag: Sedative
  • Tag: Tentative

Effects

  • Sedation
  • Muscle Relaxation
  • Anxiolytic
  • Sedative
  • Dystaxia
  • Hypnotic
  • Anxiety Suppression
  • Amnesia
  • Motor Control Loss
  • Reduced Anxiety
  • Euphoria
  • Thought Deceleration
  • Dulled Perception
  • Disinhibition
  • Open Eye Visuals
  • Double Vision
  • Blurred Vision
  • Voices

Routes of Administration

Oral

Dosage

  • Heavy: 6-12 mg
  • Common: 3 – 6 mg

Duration

  • Onset: 0.33-1 h
  • After Effects: 1-6 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.

Links

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Meclonazepam - DrugsPRO Substanzleitfaden

Meclonazepam: Meclonazepam is a benzodiazepine derivative structurally related to clonazepam, first developed by Hoffmann-La Roche during the 1960s. It was initially investigated for potential antiparasitic applications, particularly in the treatment of schistosomiasis. Although it has appeared on t

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