Flubromazepam is a long-lasting benzodiazepine that produces anxiolytic, sedative, muscle relaxant, and amnesic effects. Originally synthesized in 1960, it was never marketed and received no further attention until it resurfaced in late 2012 as an online research chemical. It has not been formally studied, meaning its pharmacological profile remains largely speculative, based on its subjective effects and structural similarities to other benzodiazepines.
Флубромазепам molecular structure diagram from the DrugsPRO substance library.
Also known as: JYI-42, F-bromazepam
Classification
Chemical: Benzodiazepine
Psychoactive: Depressant
Tag: Anxiolytic
Tag: GABAergic
Tag: Habit-Forming
Tag: Muscle Relaxant
Tag: Research-Chemical
Tag: Sedative
Effects
Sedation
Respiratory Depression
Muscle Relaxation
Anxiolytic
Sedative
Dystaxia
Amnesia
Anxiety Suppression
Thought Deceleration
Information Processing Suppression
Euphoria
Compulsive Redosing
Disinhibition
Dulled Perception
Routes of Administration
Oral
Dosage
Heavy: 12 mg
Light: 2 – 4 mg
Common: 4 – 8 mg
Strong: 8 – 12 mg
Threshold: 0.5 mg
Duration
Onset: 0.25-1.5 h
After Effects: 24-72 h
Peak: 2-6 h
Offset: 12-36 h
Total Duration: 18-48 h
Sublingual
Dosage
Heavy: 6+ mg
Light: 0.5-1 mg
Common: 1-3 mg
Strong: 3-6 mg
Threshold: 0.5 mg
Duration
No data available for this section yet.
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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Flubromazepam - DrugsPRO vodič o supstancama
Flubromazepam: Flubromazepam is a long-lasting benzodiazepine that produces anxiolytic, sedative, muscle relaxant, and amnesic effects. Originally synthesized in 1960, it was never marketed and received no further attention until it resurfaced in late 2012 as an online research chemical. It has not