Medazepam is a long-acting benzodiazepine prodrug that metabolizes to diazepam and nordazepam, producing prolonged anxiolytic and sedative effects. Due to its very long half-life (36-200 hours) and active metabolites, the drug accumulates with repeated dosing, increasing risks of sedation and cognitive impairment. Withdrawal can be severe after prolonged use and requires medical supervision with gradual dose reduction. Elderly patients and those with hepatic impairment should use reduced doses.
Medasepaam molecular structure diagram from the DrugsPRO substance library.
Also known as: Talis, Resmit, Narsis, Nobrium, Rudotel, Ansilan, Rusedal, Lerisum, Medacepan, Megasedan, Debrum, Tranquirax, Nobritol
Classification
Chemical: Benzodiazepine
Psychoactive: Depressant
Tag: Anxiolytic
Tag: GABAergic
Tag: Habit-Forming
Tag: Muscle Relaxant
Effects
Sedation
Muscle Relaxation
Physical Euphoria
Respiratory Depression
Incoordination
Impaired Balance
Anxiety Suppression
Motor Control Loss
Memory Suppression
Thought Deceleration
Emotion Suppression
Cognitive Euphoria
Disinhibition
Dulled Perception
Routes of Administration
Oral
Dosage
Threshold: 2.5 mg
Light: 5-10 mg
Common: 10-30 mg
Strong: 20-40 mg
Heavy: 60+ mg
Duration
Onset: 0.5-1 h
Comeup: 0.5-1.5 h
Peak: 1-2 h
Offset: 6-12 h
After Effects: 12-72 h
Total Duration: 6-24 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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Medazepam - DrugsPRO ainejuhend
Medazepam: Medazepam is a long-acting benzodiazepine prodrug that metabolizes to diazepam and nordazepam, producing prolonged anxiolytic and sedative effects. Due to its very long half-life (36-200 hours) and active metabolites, the drug accumulates with repeated dosing, increasing risks of sedation