GVL Stats & Data
Tranquili-g
4-pentanolide
4-methylbutyrolactone
Gamma-methyl-gamma-butyrolactone
PubChem
MW100.12
FormulaC5H8O2
LogP0.6
IUPAC5-methyloxolan-2-one
InChIKey
GAEKPEKOJKCEMS-UHFFFAOYSA-N
Psychoactive Class
Depressant
Tolerance & Pharmacokinetics
drugs.wikiTolerance Decay
Full tolerance
3d
Half tolerance
8d
Baseline
~14d
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Experience Report Analysis
Erowid
6
Reports
2001–2003
Date Range
2
Effects Detected
Demographics
Gender Distribution
Reports Over Time
Effect Analysis
ErowidEffects aggregated from 6 experience reports (6 Erowid)
6
Reports
2
Effects Detected
2
Positive
0
Adverse
0
Neutral
Effect Sentiment Distribution
Confidence Distribution
Positive Effects 2
Sedation
50.0%
70%
Anxiety Suppression
50.0%
70%
Adverse Effects 0
Real-World Dose Distribution
62K DosesFrom 3 individual dose entries
Form / Preparation
Most common forms and preparations reported