Flurazepam

Flurazepam is a long-acting benzodiazepine hypnotic prescribed for insomnia. Its active metabolite N-desalkylflurazepam has an exceptionally long half-life (40-250 hours), causing next-day sedation, cognitive impairment, and increased fall risk, especially in elderly users. Tolerance develops within 2-4 weeks of regular use. Withdrawal requires careful medical supervision with gradual dose tapering. Schedule IV controlled substance in the US.

Also known as: Dalmane, Dalmadorm, Felison, Flunox, Sompan, Valdorm, Ro 5-6901

Classification

Chemical: Benzodiazepine
Psychoactive: Depressant
Tag: Anxiolytic
Tag: GABAergic
Tag: Habit-Forming
Tag: Muscle Relaxant
Tag: Sedative

Effects

Sedation
Muscle Relaxation
Physical Euphoria
Residual Sleepiness
Anxiolytic
Sedative
Anxiety Suppression
Memory Suppression
Thought Deceleration
Emotion Suppression
Dizziness
Cognitive Impairment
Disinhibition
Dulled Perception

Routes of Administration

Oral

Dosage

Threshold: 5 mg
Light: 7.5-15 mg
Common: 15-30 mg
Strong: 30-60 mg
Heavy: 60+ mg

Duration

Onset: 0.25-0.75 h
Comeup: 0.5-1 h
Peak: 1-2 h
Offset: 8-12 h
After Effects: 24-48 h
Total Duration: 10-16 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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