A few months before my experience I had tried AMT once, one 30mg pill which disappointingly, gave both my friend and I no effects whatsoever. Fast forward to the 2nd time and after a failed attempt at getting hold of some shrooms to have a fun filled psychedelic day round a friendΒs, I suggested that we try AMT again,...
aMT
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 6 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 26 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Research-chemical
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 6 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 26 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Research-chemical
Aliases: 3-it, It-290, It-403, Indopan, Alpha-methyltryptamine, alphamethyltryptamine, Ξ±MT
Summary
AMT is a long-acting psychedelic stimulant with significant body load and powerful nausea during onset. At higher doses (approaching 150 mg), it acts as a reversible MAOI, greatly increasing the risk of serotonin syndrome when combined with other serotonergic substances. Effects can take over 2 hours to fully develop; redosing prematurely has led to dangerous overdoses.
Perspectives
“I got a strong psychedelic experience that lasted about twelve hours, but an unexpected relief from my chronic depression that lasted for four days.”
“If it was still accessible I would probably sample this again, but under significantly different conditions.”
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 10-25mg | 25-40mg | 40-60mg | 60mg+ |
Light
Common
Strong
Heavy
Sources
Oral
Dose ladder — Light: dose.wiki, Drugs.Wiki, PsychonautWiki · Common: dose.wiki, PsychonautWiki, TripSit · Strong: dose.wiki, Drugs.Wiki, PsychonautWiki, TripSit · Heavy: TripSit
β above 60 mg oral
Hospitalizations reported (unverified)
“Erowid states that they have received "a handful of unverifiable reports of hospitalization after high-dose (over 60 mg oral) AMT ingestion."” — Erowid via PsychonautWiki
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 0.5-2 hrs | 1-2 hrs | 2-6 hrs | 4-8 hrs | 13-15 hrs |
| Insufflated | 4-15 min | 15-30 min | 2-6 hrs | 4-8 hrs | 10-16 hrs |
| Smoked (Freebase) | 4 min | 10-19 min | 1-3 hrs | 2-4 hrs | 10-16 hrs |
Effect Profile
269 reportsScores (0–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Validated against 158 Erowid trip reports
- Weighted by importance: core (×3), major (×2), minor (×1)
Psychedelic
8.5
Intense
8/10
Strong visuals, headspace, and auditory effects with strong body load
Visual Intensity
×3
10
drifting
tracers
colour shifting
visual distortions
brightened colour
Headspace Depth
×3
10
conceptual thinking
thought connectivity
emotion enhancement
time distortion
confusion
Auditory Effects
×1
8
Body Load / Somatic Effects
×1
10
nausea
temperature regulation suppression
vomiting
muscle tension
increased heart rate
Empathogen
9.4
Intense+
9/10
Strong empathy, stimulation, sensory enhancement, and euphoria
Empathy / Social Openness
×3
10
empathy enhancement
empathy
affection enhancement
sociability enhancement
Euphoria / Mood Elevation
×2
8
euphoria
emotion enhancement
Stimulation
×1
10
stimulation
wakefulness
restlessness
increased heart rate
Sensory Enhancement
×1
10
enhanced tactile sensation
Stimulant
5.6
Strong
6/10
Strong stimulation with strong anxiety/jitters, moderate euphoria, low focus
Stimulation / Energy
×3
9
stimulation
wakefulness
Euphoria / Mood Lift
×2
6
euphoria
Focus / Productivity
×2
3
analysis enhancement
Anxiety / Jitters
×1
10
anxiety
restlessness
increased heart rate
muscle tension
Tolerance
Build-up
develops rapidly after a single use
Reset
7β14 days for baseline
Tolerance Decay
Full tolerance
1d
Half tolerance
7d
Baseline
~14d
Acutely diminished effects if re-dosed within days; spacing of at least 1β2 weeks is commonly recommended in HR communities to minimize tolerance and after-effects.
Cross-Tolerances
Psilocybin/psilocin
Effects
Aggregated from 158 single-substance Erowid and 111 Bluelight experience reports (the Bluelight figures come from the 50 of them read for effects); 122 Erowid reports where another drug was taken too are left out
Each bar shows the share of analyzed reports whose text mentions that effect — a mention is not always a first-hand experience (fear of an effect or something witnessed can count). Mentions saying the effect did not happen are left out; that check reads keywords, so it can miss some. The shaded band on a bar, and the small range after its number, is the 95% interval: where the share could plausibly be with other reports of the same kind. Fewer reports, wider band. Tap or hover any number for details. The second value is the Bluelight extractor's per-effect confidence; a dash means the row is Erowid-derived, which has no confidence measurement.
Effect glossary — · full glossary
Positive Effects 75
51.4% (95% interval 45 to 58 percent)
85%
46.6% (95% interval 40 to 53 percent)
84%
40.9% (95% interval 34 to 48 percent)
88%
37.0% (95% interval 31 to 44 percent)
84%
34.0% (95% interval 22 to 48 percent)
80%
33.7% (95% interval 28 to 40 percent)
86%
26.0% (95% interval 16 to 40 percent)
86%
26.0% (95% interval 16 to 40 percent)
86%
25.0% (95% interval 20 to 31 percent)
86%
24.0% (95% interval 14 to 37 percent)
84%
24.0% (95% interval 14 to 37 percent)
85%
20.0% (95% interval 11 to 33 percent)
85%
19.7% (95% interval 15 to 26 percent)
83%
Auditory Effects
19.7% (95% interval 15 to 26 percent)
81%
18.8% (95% interval 14 to 25 percent)
88%
18.0% (95% interval 10 to 31 percent)
86%
18.0% (95% interval 10 to 31 percent)
85%
18.0% (95% interval 10 to 31 percent)
82%
16.0% (95% interval 8 to 28 percent)
80%
16.0% (95% interval 8 to 28 percent)
87%
Show 55 more positive effects
14.5% (95% interval 10 to 20 percent)
79%
13.4% (95% interval 10 to 19 percent)
89%
12.0% (95% interval 6 to 24 percent)
81%
12.0% (95% interval 6 to 24 percent)
79%
10.1% (95% interval 6 to 16 percent)
–
10.0% (95% interval 4 to 21 percent)
83%
10.0% (95% interval 4 to 21 percent)
82%
8.0% (95% interval 3 to 19 percent)
78%
8.0% (95% interval 3 to 19 percent)
75%
8.0% (95% interval 3 to 19 percent)
79%
8.0% (95% interval 3 to 19 percent)
82%
8.0% (95% interval 3 to 19 percent)
80%
6.0% (95% interval 2 to 16 percent)
85%
6.0% (95% interval 2 to 16 percent)
77%
6.0% (95% interval 2 to 16 percent)
80%
6.0% (95% interval 2 to 16 percent)
78%
6.0% (95% interval 2 to 16 percent)
83%
6.0% (95% interval 2 to 16 percent)
80%
6.0% (95% interval 2 to 16 percent)
75%
6.0% (95% interval 2 to 16 percent)
82%
5.8% (95% interval 3 to 10 percent)
70%
5.7% (95% interval 3 to 10 percent)
–
4.8% (95% interval 3 to 9 percent)
85%
4.0% (95% interval 1 to 14 percent)
78%
4.0% (95% interval 1 to 14 percent)
82%
4.0% (95% interval 1 to 14 percent)
78%
4.0% (95% interval 1 to 14 percent)
85%
4.0% (95% interval 1 to 14 percent)
85%
4.0% (95% interval 1 to 14 percent)
82%
4.0% (95% interval 1 to 14 percent)
85%
4.0% (95% interval 1 to 14 percent)
82%
4.0% (95% interval 1 to 14 percent)
82%
4.0% (95% interval 1 to 14 percent)
76%
4.0% (95% interval 1 to 14 percent)
75%
2.0% (95% interval 0 to 10 percent)
85%
2.0% (95% interval 0 to 10 percent)
80%
2.0% (95% interval 0 to 10 percent)
80%
2.0% (95% interval 0 to 10 percent)
85%
2.0% (95% interval 0 to 10 percent)
80%
2.0% (95% interval 0 to 10 percent)
75%
2.0% (95% interval 0 to 10 percent)
90%
2.0% (95% interval 0 to 10 percent)
90%
2.0% (95% interval 0 to 10 percent)
80%
2.0% (95% interval 0 to 10 percent)
80%
2.0% (95% interval 0 to 10 percent)
90%
2.0% (95% interval 0 to 10 percent)
75%
2.0% (95% interval 0 to 10 percent)
85%
2.0% (95% interval 0 to 10 percent)
75%
2.0% (95% interval 0 to 10 percent)
78%
2.0% (95% interval 0 to 10 percent)
78%
2.0% (95% interval 0 to 10 percent)
82%
2.0% (95% interval 0 to 10 percent)
90%
2.0% (95% interval 0 to 10 percent)
75%
2.0% (95% interval 0 to 10 percent)
85%
Motor Control
2.0% (95% interval 0 to 10 percent)
75%
Adverse Effects 47
50.5% (95% interval 44 to 57 percent)
84%
37.0% (95% interval 31 to 44 percent)
80%
26.0% (95% interval 16 to 40 percent)
78%
24.0% (95% interval 14 to 37 percent)
90%
24.0% (95% interval 14 to 37 percent)
80%
23.1% (95% interval 18 to 29 percent)
75%
22.6% (95% interval 17 to 29 percent)
87%
17.3% (95% interval 13 to 23 percent)
89%
14.0% (95% interval 7 to 26 percent)
80%
12.0% (95% interval 6 to 24 percent)
82%
11.6% (95% interval 8 to 17 percent)
80%
8.2% (95% interval 5 to 14 percent)
–
8.0% (95% interval 3 to 19 percent)
79%
7.2% (95% interval 4 to 12 percent)
83%
6.0% (95% interval 2 to 16 percent)
77%
6.0% (95% interval 2 to 16 percent)
82%
6.0% (95% interval 2 to 16 percent)
85%
6.0% (95% interval 2 to 16 percent)
77%
6.0% (95% interval 2 to 16 percent)
77%
6.0% (95% interval 2 to 16 percent)
88%
2.5% (95% interval 1 to 6 percent)
–
1.9% (95% interval 1 to 5 percent)
–
Show 25 more adverse effects
6.0% (95% interval 2 to 16 percent)
76%
6.0% (95% interval 2 to 16 percent)
84%
4.0% (95% interval 1 to 14 percent)
88%
4.0% (95% interval 1 to 14 percent)
78%
4.0% (95% interval 1 to 14 percent)
75%
4.0% (95% interval 1 to 14 percent)
80%
4.0% (95% interval 1 to 14 percent)
90%
4.0% (95% interval 1 to 14 percent)
80%
4.0% (95% interval 1 to 14 percent)
85%
4.0% (95% interval 1 to 14 percent)
90%
4.0% (95% interval 1 to 14 percent)
80%
4.0% (95% interval 1 to 14 percent)
70%
2.0% (95% interval 0 to 10 percent)
65%
2.0% (95% interval 0 to 10 percent)
70%
2.0% (95% interval 0 to 10 percent)
75%
2.0% (95% interval 0 to 10 percent)
75%
2.0% (95% interval 0 to 10 percent)
80%
2.0% (95% interval 0 to 10 percent)
75%
2.0% (95% interval 0 to 10 percent)
70%
2.0% (95% interval 0 to 10 percent)
75%
2.0% (95% interval 0 to 10 percent)
75%
2.0% (95% interval 0 to 10 percent)
90%
2.0% (95% interval 0 to 10 percent)
82%
2.0% (95% interval 0 to 10 percent)
80%
2.0% (95% interval 0 to 10 percent)
85%
Also reported in combinations. In the 122 aMT reports where another drug was taken too, 14 (11.5%) mention hospital, emergency services or an overdose, 2 (1.6%) a seizure and 2 (1.6%) psychosis. In the 158 single-substance reports: 14.6%, 2.5% and 1.9%. These are not in the figures above: they cannot be put down to aMT alone, and a mention is not always something that happened to the writer.
Combinations
Cross-Check aMT with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, Bluelight, and Dose.wiki. 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 7 reports 2 positive 4 neutral 1 cautionary visit
Two endeavors into the world of alpha methyltryptamine: Date: June 2002 Weight: 150 lbs Dose - @ 40 mgs Method Β Oral, capsulated Group size Β 6 Setting - beach My friends and I had just gotten through our first year of college.
Drug History: Before I get too far off, lets review my history, yes I've tripped acid many many times...but it's been a/b two/two in a half years since ive been able to find any.
Before we started with this new substance, we did a literature search and came up with the following : Record of Published Clinical Trials (Source unknown) INTRODUCTION Having decided to study these two compounds [psilocybin, JB-329] concurrently, we further decided to introduce a comparison drug.
In retrospect, itΒs a little surprising that I got myself into this predicament. Nonetheless, I had several lapses in judgment that lead to my visit to the medical tent at burning man. Set and Setting: Trying the newest research chemicals holds virtually no interest for me. I guess IΒm a reluctant psychonaut.
(Note: I began writing this report 13+ hours after ingesting 80mg of AMT. Some parts of this report are very hard to recall, as time was severely distorted and for other reasons explained in further detail later, but I have attempted to explain everything as clearly as possible.
Below is the account of the events which changed my life on and around Thursday, February 27th, 2003. You may find what I have to say funny or stupid but I assure you that what you are about to read is real. If you begin to read, don't stop, because it takes the full to get the true effect of things. Please enjoy.
Bluelight 8 threads 5 positive 3 neutral visit
So I think I need to start off by giving a bit of context - I've been addicted to heroin for the better part of this past year. I've come to a bit of a crossroads recently regarding my use as I have a gigantic career opportunity coming up in a couple weeks, an opportunity that I've been absolutely terrified of messing...
Substance - Amount - Method AMT - 60 mg - Oral Cannabis - 1 bowl - Smoked AMT at 40 mg was a pleasant trip with mild visuals. The body load was hardly a problem and even somewhat enjoyable. However, AMT at 60 mg was a little bit different.
Background: I've sampled dozens of different psychedelics over the years, but this one has eluded me until I managed to acquire this small sample. With the possible exception of a mystery drug that may have been aET, I've never had an enjoyable experience with a serotonin releaser.
Over the past year I have come to really love AMT (or more accurately, aMT), which is short for alpha-methyltryptamine. It carries the tryptamine skeleton, but it also shares alpha-methylation with amphetamine (which is alpha-methylphenethylamine).
This report was written by both participants collaboratively throughout the experience, and has not been altered in any way except notes being added after the experience and this foreword. We have tried to describe the experience in as much detail as we could at the time, so forgive the length.
This weekend I had one of the greatest psychedelic experiences of my life. Iβm going to try and do it justice here. Last week, my friend "B" and I began exchanging e-mails with a view to heading somewhere for a camping trip.
AMT 80mg 225 lbs. 6'1" 5-22-02 (Note: I began writing this report 13+ hours after ingesting 80mg of AMT. Some parts of this report are very hard to recall, as time was severely distorted and for other reasons explained in further detail later, but I have attempted to explain everything as clearly as possible.
Okay, as promised in my response to the AMT post, here is my trip report. The night started out great. I knew that I had school the next day, and I also knew that smoking and insufflating a relatively obscure chemical was inherently dangerous, especially without the use of a scale.
Dose.wiki 1 report 1 neutral visit
Take pill containing 30mg of AMT. I started to feel stimulated, had a sort of MDMA-like buzz setting in. I decided to try and do some of my college photography coursework, hoping that I'd have increased creativity, but was too easily distracted. My otherβ¦
Bluelight Reference Guide
Tryptamines The Big & Dandy AMT / Ξ±MT Thread - 5th Blast
Welcome to the Big & Dandy Ξ±MT Thread (Part 5) 3D view: NSFW: Alpha-Methyltryptamine External Links Wikipedia AMT Page TIHKAL AMT entry Erowid AMT Vault Lycaeum AMT Page Subthread Hyperlinks Injecting AMT Smoking / Vaporizing AMT Conversion Freebase to HCl Salt Salt to Freebase (Coming Soon / Provide us with a tek!) AM...
Read full thread on Bluelight βPiHKAL / TiHKAL
TiHKAL #48: a-MT
“I got a strong psychedelic experience that lasted about twelve hours, but an unexpected relief from my chronic depression that lasted for four days.”
aMT's nerd page
Pharmacology, chemical data, effect profiles, and more
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Helpful Links
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The PsychonautWiki Journal app already has aMT, but its built-in entry only covers Oral. 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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Duration (reference)
aMT: routes the PsychonautWiki Journal app is missing Source: SubstanceSearch (substancesearch.com) Insufflated duration: onset 4-15m Β· come-up 15-30m Β· peak 2-6h Β· offset 4-8h Β· total 10-16h Β· after-effects 24h Smoked (Freebase) duration: onset 4m Β· come-up 10-19m Β· peak 1-3h Β· offset 2-4h Β· total 10-16h Β· after-effects 12h Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.
Ranges are harm-reduction guidance, not a prescription.
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