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    Disclaimer
    ๐Ÿงช This is a research chemical with limited data on its long-term health effects, toxicity profile, and safe dosage ranges.
    โš  This substance involves MAOI activity. Dangerous interactions can occur with many common foods and medications. Research contraindications thoroughly.

    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
    • PubChem toxicity data
    • classified Research-chemical

    Aliases: 3-it, It-290, It-403, Indopan, Alpha-methyltryptamine, alphamethyltryptamine, ฮฑMT

    Summary TheDrug.Wiki Erowid TripSit PsychonautWiki

    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 TheDrug.Wiki TripSit PsychonautWiki

    ROA Light Common Strong Heavy
    Oral 10-25mg 25-40mg 40-60mg 60mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects TheDrug.Wiki TripSit PsychonautWiki

    ROA Onset Comeup Peak Offset After Effects Total
    Oral 0.5-2 hrs 1-2 hrs 2-6 hrs 4-8 hrs 24 hrs 13-15 hrs
    Insufflated 4-15 min 15-30 min 2-6 hrs 4-8 hrs 24 hrs 10-16 hrs
    Smoked (Freebase) 4 min 10-19 min 1-3 hrs 2-4 hrs 12 hrs 10-16 hrs

    Effect Profile

    391 reports

    Scores (1–10) curated from multiple sources:

    • Effect keyword matching from PsychonautWiki catalog
    • Validated against 280 Erowid trip reports
    • Weighted by importance: core (×3), major (×2), minor (×1)

    Full methodology

    Psychedelic 8.5
    Intense 8/10

    Strong visuals, headspace, body load, and auditory effects

    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 9.7
    Extreme 10/10

    Strong empathy, stimulation, sensory enhancement, and euphoria

    Empathy / Social Openness ×3
    10
    empathy enhancement empathy affection enhancement sociability enhancement
    Euphoria / Mood Elevation ×2
    9
    euphoria emotion enhancement
    Stimulation ×1
    10
    stimulation wakefulness restlessness increased heart rate
    Sensory Enhancement ×1
    10
    enhanced tactile sensation
    Stimulant 6.1
    Strong 6/10

    Strong anxiety/jitters and stimulation with moderate euphoria, mild focus

    Stimulation / Energy ×3
    9
    stimulation wakefulness
    Euphoria / Mood Lift ×2
    6
    euphoria
    Focus / Productivity ×2
    5
    analysis enhancement
    Anxiety / Jitters ×1
    10
    anxiety restlessness increased heart rate muscle tension

    Tolerance

    Build-up develops rapidly after a single use
    Reset 7โ€“14 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 1โ€“2 weeks is commonly recommended in HR communities to minimize tolerance and after-effects.

    Cross-Tolerances

    Effects Erowid Bluelight

    Aggregated from 280 Erowid and 111 Bluelight experience reports

    Positive Effects 74

    Visual Distortions 61.5% 85%
    Stimulation 46.0% 84%
    Euphoria 43.3% 88%
    Color Enhancement 41.2% 84%
    Music Enhancement 40.0% 86%
    Thought Acceleration 34.0% 80%
    Empathy 26.9% 86%
    Patterning 26.0% 86%
    Surface Breathing 26.0% 86%
    Tactile Enhancement 25.0% 70%
    Visual Trails 24.0% 84%
    Joy 24.0% 85%
    Closed-Eye Visuals 22.1% 88%
    Auditory Effects 21.5% 81%
    Melting/flowing 20.0% 85%
    Body High 19.7% 83%
    Morphing 18.0% 86%
    Sociability Enhancement 18.0% 85%
    Awe 18.0% 82%
    Focus Enhancement 17.9% 70%

    Adverse Effects 47

    Nausea 51.8% 84%
    Anxiety 38.5% 80%
    Confusion 30.6% 87%
    Sedation 27.3% 75%
    Body Load 26.0% 78%
    Vomiting 24.0% 90%
    Thought Disorganization 24.0% 80%
    Headache 17.2% 89%
    Muscle Tension 14.5% 80%
    Paranoia 14.0% 80%
    Insomnia 12.0% 82%
    Increased Heart Rate 10.0% 70%
    Restlessness 8.0% 79%
    Motor Impairment 7.9% 83%
    Focus Suppression 6.0% 77%
    Tremor 6.0% 82%
    Panic 6.0% 85%
    Dysphoria 6.0% 77%
    Cold Flashes 6.0% 77%
    Fear 6.0% 88%

    Combinations TripSit

    Cross-Check aMT with another substance

    Trip Reports Effect Index

    Community Trip Reports

    Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.

    Erowid 8 reports 3 positive 3 neutral 2 cautionary visit
    Complete Psychedelic Spiritual Harmony positive exp #102081

    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 friendย’s, I suggested that we try AMT again,...

    SumJosh · AMT · 60 mg oral / smoked / smoked / 30 mg oral
    Complete Psychedelic Spiritual Harmony positive exp #99145

    A few months before my experience I had tried AMT once, one 30mg pill which disappointingly, gave both my friend and me 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 friendย’s, I suggested that we try AMT again,...

    SumJosh · AMT
    Mapping the Frontier positive exp #32735

    Two endeavors into the world of alpha methyltryptamine: Date: June 2002 Weight: 150 lbs Dose - @ 40 mgs Method ย– Oral, capsulated Group size ย– 6 Setting - beach My friends and I had just gotten through our first year of college.

    My Digital Past · AMT · 40 mg oral
    The Path and the Party neutral exp #20718

    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.

    La La · AMT · 30 mg oral
    A Collection of AMT Experiences neutral exp #1760

    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.

    Scotto · AMT · 40 mg oral
    Having Trouble Discerning What My Body Needs neutral exp #17730

    In retrospect, itย’s 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 Iย’m a reluctant psychonaut.

    Samanthe · AMT · 40 mg oral
    The Bird Shaman cautionary exp #14906

    (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.

    Eh-Empty · AMT · 80 mg oral
    A Lifetime of Information cautionary exp #27551

    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.

    GoNzO · AMT (dl-alpha-Methyltrypamine) · 100 mg oral
    Bluelight 8 threads 2 positive 6 neutral visit
    Amt 25mg Very Little Psych Experience I Feel Like It Saved My Life positive

    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...

    scraped 2026-03-14
    Amt 2nd Time Powerful Trip But Strong Body Load positive

    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.

    scraped 2026-03-14
    Amt 40mg 20mg Rectal First Time Shouldve Known neutral

    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.

    scraped 2026-03-14
    Amt Others Very Experienced Retrospective And A Trip neutral

    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).

    scraped 2026-03-14
    Amt 30 Mg Second Time The Spider That Never Was neutral

    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.

    scraped 2026-03-14
    Amt First Time Over The Hills And Through The Valleys neutral

    This weekend I had one of the greatest psychedelic experiences of my life. Iโ€™m 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.

    scraped 2026-03-14
    Amt 80mg First Time The Bird Shaman Long neutral

    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.

    scraped 2026-03-14
    Amt Experienced Not What I Bargained For At All neutral

    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.

    scraped 2026-03-14

    Bluelight Reference Guide Bluelight

    Tryptamines The Big & Dandy AMT / ฮฑMT Thread - 5th Blast

    Welcome to the Big & Dandy ฮฑMT 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 โ†’

    PiHKAL / TiHKAL Shulgin

    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.”

    โ€” Alexander Shulgin, TiHKAL (with 15 mg, orally)

    Helpful Links