GBL
Aliases: Gamma-bl, Blue nitro, Revivarant, Renewtrient, 1,4-lactone
Categories
Summary
GBL is a prodrug rapidly converted to GHB in the body and is significantly more potent by volume than GHB. Accurate dosing with a syringe is critical as doses are measured in single milliliters. Overdose risk is high and can result in loss of consciousness, respiratory depression, and death, especially when combined with other depressants. Store only in glass containers as GBL dissolves most plastics. Tolerance develops rapidly, and withdrawal can be severe and potentially life-threatening.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral BA ~95% | 0.3-0.9ml | 0.9-1.5ml | 1.5-3ml | 3ml+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | After Effects | Total |
|---|---|---|---|---|---|---|
| Oral | 10-19 min | 10-30 min | 30-90 min | 1.0-2.0 hrs | 2.0-6.0 hrs | 1.5-2.5 hrs |
Tolerance
Build-up
develops rapidly (prodrug for GHB — same tolerance profile)
Reset
3–7 days for acute tolerance
Cross-tolerance
Effects
Positive
- Muscle relaxation
- Stimulation
- Analgesia
- Physical euphoria
- Anxiolysis
Negative
- Nausea
- Nystagmus
- Sedation
- Dystaxia
- Difficulty speaking
Positive
- Cognitive euphoria
- Empathy, affection, and sociability enhancement
- Anxiety suppression
- Relaxation
- Mood lift
- Happiness
- Sociability
Negative
- Memory suppression
- Amnesia
- Motor control loss
- Compulsive redosing
- Dizziness
- Drowsiness
- Lowered inhibitions
Positive
- Increased libido
- Tactile Enhancement
- Increased Music Appreciation
- Pattern Recognition Enhancement
Negative
- Disinhibition
- Double vision
- Appetite suppression
- Increased sex drive
- Dulled perception
- Auditory hallucination