This was my first experience with MPT, and it was a long time coming. In all of my research chemical experimentations, the one molecule that has stood out to me the most, given me the best and most impressive psychedelic experiences, and rightly earned the position of my favorite among them, is 4-HO-MPT.
MPT
Limited data
Limited data
Sparse data. Doses and effects may be unreliable or untested.
- 1 source
- 18 combo interactions documented
- toxicity data (PsychonautWiki)
Limited data
Sparse data. Doses and effects may be unreliable or untested.
- 1 source
- 18 combo interactions documented
- toxicity data (PsychonautWiki)
Summary
N-Methyl-N-propyltryptamine (abbreviated MPT; also known as Methylpropyltryptamine) is a synthetic psychedelic of the tryptamine class that has reported to display powerful hallucinogenic and sometimes entactogenic effects. It is structurally analogous to N,N-dimethyltryptamine (DMT) and various base psychedelic tryptamines by which one can have a "breakthrough" experience such as MET, EPT, and DPT.
Dose Information
Effect Profile
3 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Psychedelic
7.4
Strong+
7/10
Strong visuals and auditory effects with mild headspace and body load
Visual Intensity
×3
10
color enhancement
drifting
tracers
color shifting
visual distortions
brightened colour
+1 more
Headspace Depth
×3
5
introspection
personal bias suppression
time distortion
confusion
Auditory Effects
×1
8
auditory distortion
auditory hallucination
Body Load / Somatic Effects
×1
4
nausea
muscle tension
Based on reports from:
Tolerance
Build-up
develops rapidly after a single use
Reset
7–14 days for baseline
Tolerance Decay
Full tolerance
1h
Half tolerance
10d
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.
Effects
Aggregated from 3 Erowid experience reports
Positive Effects 1
Stimulation
100.0%
70%
Adverse Effects 0
Combinations
Cross-Check MPT with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance. Tags summarise each author's own verdict — how reports are classified.
Erowid 1 report 1 positive visit
Bluelight 3 threads 3 neutral visit
This was my first experience with MPT, and it was a long time coming. In all of my research chemical experimentations, the one molecule that has stood out to me the most, given me the best and most impressive psychedelic experiences, and rightly earned the position of my favorite among them, is 4-HO-MPT.
9:04 p.m. - Just placed 53mgs of MPT in parachute and took it orally on a relatively empty stomach. Tonight I'd decided on having my first trial after accidentally destroying a capsule of 4-AcO-EPT I'd planned on taking a couple hours earlier.
50mg of MPT looks a fair pile and bubbles up to a dense cloud in the bong but goes down fine and I quickly slip into the trip, catching a glance of my surroundings starting to look very good and vivid before I close my eyes.
Bluelight Reference Guide
Tryptamines The Big & Dandy MPT Thread
I'd be more curious to try MPT but I also really want to try this stuff (still need to try my sample of DiPT).
Read full thread on Bluelight →
MPT's nerd page
Pharmacology, chemical data, effect profiles, and more
→
Helpful Links
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