1,4-Butanediol
Aliases: 1, Bd, Bdo, 4-b, 1,4-b, 1,4-bd, 14bd
Summary
1,4-BDO is a prodrug for GHB, metabolized by alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH). Individual metabolic variability means two users can respond very differently to the same dose. Onset is slower than GBL, making redosing particularly risky as people often mistakenly believe the first dose was weak.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 0.5-1mL | 1-2.5mL | 2.5-4mL | 4mL+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 7-30 min | 30-60 min | 30-90 min | 2-4 hrs | 3.1-7 hrs |
Tolerance
Build-up
develops over 1–4 weeks of regular use
Reset
days to weeks depending on duration of use
Tolerance Decay
Full tolerance
3d
Half tolerance
8d
Baseline
~14d
Effects
Aggregated from 59 Erowid experience reports
Positive Effects 9
Stimulation
30.5%
70%
Euphoria
28.8%
70%
Anxiety Suppression
25.4%
70%
Empathy
18.6%
70%
Tactile Enhancement
16.9%
70%
Sedation
15.3%
70%
Music Enhancement
13.6%
70%
Focus Enhancement
11.9%
70%
Color Enhancement
8.5%
70%
Adverse Effects 8
Nausea
32.2%
70%
Confusion
23.7%
70%
Sweating
10.2%
70%
Seizure
10.2%
70%
Increased Heart Rate
8.5%
70%
Muscle Tension
6.8%
70%
Memory Suppression
5.1%
70%
Motor Impairment
5.1%
70%
Combinations
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