DMHA
Aliases: Amidrine, Vaporpac, Octodrine, 2-aminoisoheptane, 1,5-dimethylhexylamine
Summary
DMHA is a synthetic sympathomimetic stimulant originally developed as a nasal decongestant in the 1940s-1950s. The FDA considers DMHA an unsafe food additive and has issued warning letters to supplement manufacturers. It is banned by WADA for athletic competition and is illegal in several countries including Australia, Canada, and parts of the EU.
Dose Information
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset |
|---|---|---|---|---|
| Oral | 20-40 min | 30-60 min | 1-2 hrs | 1-2 hrs |
| Insufflated | 5-15 min | 15-30 min | 1-2 hrs | 1-2 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
5.6
Strong
6/10
Strong focus and anxiety/jitters with mild stimulation and euphoria
Stimulation / Energy
×3
5
stimulation
increased energy
Euphoria / Mood Lift
×2
5
euphoria
motivation enhancement
Focus / Productivity
×2
10
enhanced focus
focus enhancement
cognitive enhancement
motivation enhancement
Anxiety / Jitters
×1
10
anxiety
restlessness
increased heart rate
teeth grinding
tachycardia
vasoconstriction
Based on reports from:
Tolerance
Build-up
develops over days to weeks of regular use
Reset
3โ7 days for acute tolerance; longer for full reset
Tolerance Decay
Full tolerance
14d
Half tolerance
3d
Baseline
~7d
Estimates reflect stimulant-class tolerance patterns inferred from user reports; high uncertainty.
Effects
Positive
- Stimulation
- Increased energy
Negative
- Increased heart rate
- Increased blood pressure
- Vasoconstriction
- Restlessness
- Increased perspiration
- Teeth grinding
- Tachycardia
- Temperature regulation suppression
Positive
- Enhanced focus
- Cognitive enhancement
- Motivation enhancement
- Euphoria
- Focus enhancement
- Increased sociability
Negative
- Anxiety
- Irritability
- Cognitive fatigue
- Time distortion
Positive
- Increased libido
- Color enhancement
- Increased music appreciation
- Tactile enhancement
Negative
- Appetite suppression
- Light sensitivity
- Dehydration
- Disinhibition
- Dulled perception
- Drifting
DMHA's nerd page
Pharmacology, chemical data, effect profiles, and more
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