An EPT Adventure 6:38pm. Plugged 80mg. Dissolved very easily and quickly in a small amount of tap water. 3 minutes to peak. It's very intense. I've never experienced a plus four but I think I've been fairly close. This would be on the higher end of the spectrum.
EPT
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 5 corroborating sources
- 2 ROAs with full dose ladders
- duration data present
- 19 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Tentative
- classified Research-chemical
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 5 corroborating sources
- 2 ROAs with full dose ladders
- duration data present
- 19 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Tentative
- classified Research-chemical
Aliases: Ethylpropyltryptamine, N,n-ethylpropyltryptamine
Summary
EPT is a novel research chemical with very limited documentation and extremely sparse user reports. The toxicity profile is unknown and no scientific studies exist on its safety in humans. Effects are described as milder and less immersive than structurally similar tryptamines like DMT and DPT.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Insufflated | 20-40mg | 40-80mg | 80-110mg | 110mg+ |
| Oral | 50-75mg | 75-100mg | 100mg+ | - |
| Vaporized | 15-30mg | - | - | - |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Insufflated | 4-19 min | 4-15 min | 19-40 min | 1-2 hrs | 1.46-3.24 hrs |
| Oral | 30-90 min | 30-60 min | 1-2 hrs | 1-2 hrs | 3-6.5 hrs |
| Vaporized | 1-4 min | 4-10 min | 10-30 min | 30-90 min | 0.76-2.24 hrs |
Effect Profile
2 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Psychedelic
5.9
Strong
6/10
Strong visuals and auditory effects with mild body load, low headspace
Visual Intensity
×3
8
color enhancement
drifting
tracers
pattern recognition enhancement
color shifting
Headspace Depth
×3
3
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:
Add missing routes to PsychonautWiki Journal
The PsychonautWiki Journal app already has EPT, but its built-in entry only covers Insufflated. Here are the other routes we have data for. You can't edit a built-in substance, but you can add a Custom Unit for any of these routes to log it.
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Import this file as custom substances
and you get "EPT (Substance Search)" with every
route's full dose ladder and timeline, no typing. Works on iOS and
Android (v15+); the format is confirmed by the app's
developer. The manual values below work for older
versions.
Custom Unit doses
- Oralcommon ~ 87.5 mg
Dose & duration (reference)
EPT: routes the PsychonautWiki Journal app is missing Source: SubstanceSearch (substancesearch.com) Oral dose (mg): light 50-75 · common 75-100 · strong 100+ Vaporized dose (mg): light 15-30 Oral duration: onset 0.5-1.5h · come-up 0.5-1h · peak 1-2h · offset 1-2h · total 3-6.5h · after-effects 2-4h Vaporized duration: onset 1-4m · come-up 4-10m · peak 10-30m · offset 0.5-1.5h · total 0.76-2.24h · after-effects 1-2h Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.
Custom Units carry a single dose per route, so the full ranges live in the reference above. A route's suggested dose is the midpoint of its common range. Ranges are harm-reduction guidance, not a prescription.
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
Positive
- Stimulation
- Mental/physical stimulation
Negative
- Nausea
- Pupil dilation
- Restlessness
- Sweating/chills
- Muscle tension
- Dilated pupils
- Spontaneous bodily sensations
- Decreased appetite
Positive
- Analysis enhancement
- Euphoria
- Novelty enhancement
- Unity and interconnectedness
Negative
- Memory suppression
- Motor control loss
- Confusion
- Time distortion
- Thought acceleration
- Personal bias suppression
Positive
- Color enhancement
- Pattern recognition enhancement
- Increased libido
- Bodily control enhancement
- Tracers
- Color shifting
- Auditory acuity enhancement
- Drifting
- Auditory hallucination
- Auditory distortion
Combinations
Cross-Check EPT 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 neutral visit
Bluelight 3 threads 3 neutral visit
Date: October 29, 2016 Time: 10:30PM - 12:45AM Drug: N,N-ethylpropyltryptamine Dose: 60mg It's been a while since I've delved into proper psychedelics. I don't really reach for them anymore unless they're needed - and the personal progress I was hoping to make with EPT has been a long time coming, and a long time put o...
This was my first experience with EPT, and it was the third in a progression of smoked base tryptamine experiences I had had over a short time period, starting with MET and then MALT before reaching this.
N,N-EPT - 60mg (second time rectally) Full stomach, no tolerance. Two extra strength acetominophen, two ibuprofen, and ~300-400mg of kratom (which may have blunted my experience some.) Ashwagandha I spent the last two weeks on vacation, but ended up doing a bunch of caregiving for a friend pre- and post-surgery.
Bluelight Reference Guide
Tryptamines The Small & Handy EPT Thread
The Big and Dandy EPT Thread EPT Trip Reports on Bluelight (The below quoted posts were recovered from an accidentally deleted one-page EPT thread that came before this one: A vendor has been sending out samples sof this rare tryptamine and I ran find next to nothing on it.
Read full thread on Bluelight →
EPT's nerd page
Pharmacology, chemical data, effect profiles, and more
→
Helpful Links
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