MDPA Stats & Data
Methylenedioxyphenylacetamide
PubChem
MW179.17
FormulaC9H9NO3
LogP0.7
IUPAC2-(1,3-benzodioxol-5-yl)acetamide
InChIKey
GIRXKOJKVUCAIB-UHFFFAOYSA-N
Chemical Class
Opioid
Psychoactive Class
Psychedelic
Pharmacology
DrugBankEffect Profile
Curated
Psychedelic
3.5
Strong body load with moderate visuals, low headspace
Visual Intensity×3
6
Headspace Depth×3
3
Auditory Effects×1
0
Body Load / Somatic Effects×1
9
Empathogen
4.6
Moderate stimulation, sensory enhancement, and euphoria with low empathy
Empathy / Social Openness×3
2
Euphoria / Mood Elevation×2
6
Stimulation×1
7
Sensory Enhancement×1
7
Opioid
3.3
Moderate euphoria with mild itching/nausea
Euphoria / Warmth×3
6
Analgesia×2
0
Sedation / Relaxation×1
0
Itching / Nausea×1
5
Based on reports from:
Tolerance & Pharmacokinetics
drugs.wikiTolerance Decay
Full tolerance
1d
Half tolerance
21d
Baseline
~35d
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.