Flualprazolam Facts
Depressant;
Description
Flualprazolam is a synthetic depressant of the benzodiazepine class. It works by amplifying the brain's main calming signal — GABA — producing sedation, anxiety relief, and memory suppression.
Subjective effects include anxiety suppression, heavy sedation, muscle relaxation, emotional suppression, and blackouts — partial or total — that erase memory of what happened during intoxication. The experience arrives fast and envelops completely: anxiety dissolves, the body settles, and the mind narrows until memory formation stops.
Flualprazolam produces physical dependence with repeated use, and stopping abruptly can trigger seizures — a potentially life-threatening withdrawal. Most documented deaths involve opioids: when the two are combined, they suppress breathing far more powerfully than either alone, and opioids were present in 83% of postmortem cases.[1]
Dose and durationby route · individual sensitivity varies
Starts in 20 – 40 minLasts 5 – 8 hoursAfter-effects 6 – 24 hours
Body and dependence
- Acute toxicity
- Moderate
- Chronic toxicity
- Moderate
- Physical dependence
- High
- Psychological dependence
- High
- Withdrawal
- Life-threatening · fatal · medical supervision
- Compulsive redosing
- High
Tolerance
- Builds
- Moderate
- Fully resets after
- 21 days
- Carries over to
- alprazolam;
all benzodiazepines; alcohol; barbiturates; zolpidem; zopiclone; GHB
Effectslikely at a common dose
- Perception
- none likely · 5 possible, including Visual acuity suppression, Spatial disorientation, Vestibular distortion
- Body
- Sedation;
Muscle relaxation; Motor control impairment; +11 possible, including Dizziness, Nystagmus (eye wobbles), Insomnia - Thinking
- Memory suppression;
Cognitive impairment; +16 possible, including Analysis suppression, Decision impairment, Information processing suppression - Feeling
- Anxiety suppression;
+3 possible - Self
- none likely · 7 possible, including Communication suppression, Craving
- Time
- none likely · 2 possible, including Temporal disorientation
Who shouldn't take it
Combinations60 recorded
Seek help immediately if
- Extreme drowsiness — can't stay awake or be roused
- Confusion, slurred speech, severe loss of coordination
- Slow, shallow, or irregular breathing
- Unconsciousness / unresponsive; limp, floppy body
- Blue lips or fingertips
- Vomiting while sedated (choking / aspiration risk)
- Cold, clammy skin; weak pulse
What to do
- Try to wake them — shout, firm sternal rub
- If unresponsive or breathing is impaired, call emergency services
- Place them in the recovery position — critical, they can choke on vomit
- Monitor breathing continuously; be ready to give rescue breaths / CPR
- Never leave them alone to "sleep it off"
- Do not give other drugs, stimulants, or more depressants
Most depressant overdoses resolve with airway protection, breathing support, and monitoring. The danger is respiratory depression and choking on vomit — sharply worse when combined with opioids or alcohol. GHB/GBL overdoses often involve sudden deep unconsciousness and may self-resolve, but airway protection is essential.
988 Suicide & Crisis LifelineFireside Project: 62-FIRESIDE
References
- [1]^Papsun DM, Krotulski AJ, Homan J, Temporal KDH, Logan BK (2021) Flualprazolam Blood Concentrations in 197 Forensic Investigation Cases — Journal of Analytical Toxicology doi:10.1093/jat/bkaa070