4-AcO-DMT
4-AcO-DMT is a synthetic psychedelic of the tryptamine class, first synthesized by Albert Hofmann and Franz Troxler in 1963 during a chemical investigation into psilocin analogs.1 It is the acetylated form of psilocin and is widely believed to act as a prodrug for it, much like psilocybin.2 Its effects are frequently described as nearly indistinguishable from those of psilocybin mushrooms3, though sometimes characterized as warmer or more euphoric. It has a limited history of human use.
Dosage & Duration
Dosage
Doses are population estimates that vary widely between individuals.
Duration
Subjective Effects
Effects vary widely by individual, dose, and context.
Physical
The physical effects of 4-AcO-DMT can be broken down into two components all of which progressively intensify proportional to dosage.
Cognitive
The head space of 4-AcO-DMT is described by many as extremely relaxing, profound and stoning in its style when compared to other commonly used psychedelics such as LSD or 2C-B which tend to be energetic and stimulating. It contains a large number of psychedelic typical and unique cognitive effects.
Visual
Enhancements
4-AcO-DMT presents a full and complete array of possible visual enhancements.
Geometry
The visual geometry that is present throughout this trip can be described as more similar in appearance to that of ayahuasca and 2C-E than LSD. It can be comprehensively described as structured in its organization, organic in geometric style, intricate in complexity, large in size, fast and smooth in motion, colourful in scheme, glossy in colour, blurred in its edges and rounded in its corners. They have a very 'natural' feel to them and at higher dosages are significantly more likely to result in states of Level 7B visual geometry over Level 7A.
Hallucinatory States
4-AcO-DMT and its various other forms produce a full range of high level hallucinatory states in a fashion that is more consistent and reproducible than that of many other commonly used psychedelics.
Auditory
The auditory effects of 4-AcO-DMT are common in their occurrence and exhibit a full range of effects.
Pharmacology
Pharmacodynamics
4-AcO-DMT directly activates human 5-HT2A, 5-HT2B, and 5-HT2C receptors in a Gq-mediated calcium-flux assay; at 5-HT2A it is less potent than psilocin and produces 79.2% of the serotonin maximum.4
Its mouse head-twitch potency is similar to that of psilocin despite this weaker receptor-level potency, which is consistent with deacetylation to psilocin in vivo, but those experiments do not determine how much intact 4-AcO-DMT contributes to effects in humans.4
Pharmacokinetics
After intraperitoneal administration to mice, 4-AcO-DMT fumarate produced about 70% of the total peripheral psilocin exposure produced by an equimolar psilocybin dose; psilocin concentrations were 10–25% lower at 15 minutes, and the approximately 30-minute psilocin half-life did not differ by precursor.5 In an ex-vivo human-plasma stability assay, almost no acetyl ester remained at the first five-minute sample.6 A separate simulated gastrointestinal experiment predicted less than 0.1% of the prodrug remaining after five minutes, but only after extrapolation to an assumed physiological esterase activity; it was not a direct measurement in a dosed human.6 Taken together, these studies support rapid conversion to psilocin but do not provide clinical human pharmacokinetic parameters for 4-AcO-DMT.56
Dangerous
Highest riskThese combinations are considered extremely harmful and should always be avoided. Reactions to these drugs taken in combination are highly unpredictable and have a potential to cause death.
Unsafe
AvoidThere is considerable risk of physical harm when taking these combinations, they should be avoided where possible.
Caution
Use cautionThese combinations are not usually physically harmful, but may produce undesirable effects, such as physical discomfort or overstimulation. Extreme use may cause physical health issues. Synergistic effects may be unpredictable. Care should be taken when choosing to use this combination.
Tolerance
Tolerance timelines are rules of thumb, not exact schedules, and vary widely between individuals and use patterns.
Harm Potential
Addiction & Dependence
Psychological
Extremely Low4-AcO-DMT is considered non-addictive with low potential for abuse. It is not associated with compulsive use, and users commonly report a self-regulating quality where the desire for subsequent use is naturally limited.10
Physical
Extremely LowPhysical dependence is extremely unlikely due to its pharmacological similarity to psilocybin.10
Psychosis Risk
As a psychedelic, 4-AcO-DMT may trigger underlying psychological and mental problems in people predisposed by familial schizophrenia or early-developing mental illness. This risk is mainly associated with predisposed individuals rather than users in general.
Seizure Risk
Seizures are rarely observed and are thought to primarily affect those already predisposed to them11, particularly in physically taxing conditions such as being overheated, dehydrated, undernourished, or fatigued.
History & Culture
Discovery and Initial Research
4-AcO-DMT was first synthesized in 1963 by the Swiss chemists Albert Hofmann and Franz Troxler during systematic investigations into psilocin analogs conducted at Sandoz Laboratories.1 The compound, along with several other psilocin esters, was patented by Sandoz Ltd on…
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Legality
International
1961 Single Convention: 4-AcO-DMT is not individually scheduled.
1971 Convention on Psychotropic Substances: 4-AcO-DMT is not individually scheduled.
1988 Convention: 4-AcO-DMT is not listed in precursor Tables I or II.
By Country
References
Source Pages
Disregard Everything I Say
Drug Users Bible by Dominic Milton Trott
Drug Users Bible: 4-AcO-DMT
Erowid
Erowid: 4-AcO-DMT Basics
Isomer Design (TiHKAL/PiHKAL)
PsychonautWiki
TripSit Factsheet: 4-AcO-DMT
TripSit Factsheet: 4-AcO-DMT
TripSit Factsheets
TripSit Wiki
TripSit Wiki: 4-AcO-DMT
Wikipedia
Wikipedia: 4-AcO-DMT
Citations
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- Haden A. Geiger, Madeline G. Wurst, & R. Nathan Daniels. (n.d.). | class = Binding selectivity|Non-selective serotonin receptor agonist ; Serotonin 5-HT2A receptor agonist|Serotonin 5-HT<sub>2A</sub> receptor agonist ; Serotonergic p. https://doi.org/10.1021/acschemneuro.8b001861
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