Roidipedia.Compound reference & reporting
06 AUG 2026
CompoundsResearch chemical EPT (N-Ethyl-N-propyltryptamine)
Research chemicalPsychedelicTryptamineSerotonergic

EPT (N-Ethyl-N-propyltryptamine)

Also known as N-Ethyl-N-propyltryptamine · Ethylpropyltryptamine

EPT is a lesser-known psychedelic tryptamine, the N-ethyl-N-propyl homolog in the DMT family. It has appeared as a research chemical with only fragmentary self-reports and no formal human or clinical data.

01 Overview

EPT (ethylpropyltryptamine) is one of many asymmetrically N,N-disubstituted tryptamines that have surfaced on the grey market. Its longer alkyl substituents place it near DPT and DET in the structural series.

There is no published pharmacology, toxicology or pharmacokinetics for EPT in humans. The values here are conservative estimates derived from scattered anecdote and structural analogy, and should be treated as highly uncertain.

02 Mechanism

Assumed serotonin 5-HT2A agonism common to classical tryptamine psychedelics; no direct binding data published.

03 Dosing

TierDoseRouteNotes
Light (reported)10–25 mgInsufflatedAnecdotal.
Common (reported)25–50 mgOralAnecdotal; may need an MAOI for reliable oral activity.

04 Effects

EffectMagnitudeEvidence
Psychedelic perceptual changesVisual and cognitive alteration typical of tryptamines, per limited self-reports.moderateAnecdotal
IntrospectionSome users report reflective or emotionally open states.variableAnecdotal

05 Side effects

EffectSeverityFrequencyEvidenceCountermeasures
NauseaGut discomfort common with oral tryptamines.MildCommonAnecdotal
AnxietyFear and unease at higher doses.ModerateCommonAnecdotal

07 References

Shulgin A, Shulgin A. TIHKAL: The ContinuationTransform Press, 1997

08 Discussion0 comments

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This page is reference information, not medical advice. Doses and protocols are documented as they appear in the clinical literature and in practice — describing them is not a recommendation to use them. Countermeasures listed here are not a substitute for a physician. Legal status varies by jurisdiction and changes.