2-PA
Aliases: 2-phenylacetamide
Summary
2-PA is an extremely obscure beta-keto phenethylamine with almost no documented human use. TripSit describes it as amphetamine with the alpha-methyl replaced by a ketone. Human data are limited to a handful of online self-experiments; no formal pharmacology, toxicology, or safety studies exist.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 10-25mg | 25-50mg | 50-100mg | 100+mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 15-45 min | 30-60 min | 1-2 hrs | 1-2 hrs | 2.8-5.8 hrs |
| Insufflated | 5-15 min | 15-30 min | 1-2 hrs | 1-2 hrs | 2.3-4.8 hrs |
Effect Profile
Scores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Stimulant
4.1
Moderate
4/10
Strong anxiety/jitters with moderate euphoria, mild focus, low stimulation
Stimulation / Energy
×3
3
stimulation
Euphoria / Mood Lift
×2
7
euphoria
cognitive euphoria
motivation enhancement
Focus / Productivity
×2
5
focus enhancement
motivation enhancement
Anxiety / Jitters
×1
10
anxiety
restlessness
teeth grinding
increased heart rate
vasoconstriction
Based on reports from:
Tolerance
Build-up
develops rapidly, often within a single session; compulsive redosing common
Reset
a few days for acute tolerance
Cross-Tolerances
other cathinones
50%
amphetamines
40%
Effects
Positive
- Stimulation
Negative
- Teeth grinding
- Vasoconstriction
- Insomnia
- Increased heart rate
- Pupil dilation
- Nausea
- Restlessness
- Sedation
- Decreased appetite
Positive
- Euphoria
- Focus enhancement
- Motivation enhancement
- Sociability enhancement
- Cognitive euphoria
Negative
- Anxiety
- Confusion
- Compulsive redosing
- Time distortion
- Talkativeness
Positive
- Color enhancement
- Increased music appreciation
- Brightened colour
Negative
- Appetite suppression
- Light sensitivity
- Disinhibition
- Dehydration
- Dulled perception
- Closed/Open eye visuals
- Drifting
Combinations
2-PA's nerd page
Pharmacology, chemical data, effect profiles, and more
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