Mapping the phenomenology of intranasal 5-MeO-DMT in psychedelic-naïve healthy adults.

5-MeO-DMT, a short-acting psychedelic, produces a distinctive subjective experience with rapid onset, peaking at 8–15 minutes and returning to baseline within 45–60 minutes, as shown by interviews with 32 psychedelic-naïve healthy participants in a double-blind, placebo-controlled trial. Effects intensify with dose and are generally well tolerated. Unlike other psychedelics, 5-MeO-DMT elicits strong emotional or bodily experiences with relatively few visual effects, and can trigger therapeutically relevant content such as emotional breakthroughs and personal insights.

Study at a glance

Abstract

5-Methoxy-N,N-dimethyltryptamine (5-MeO-DMT) is a naturally occurring psychedelic tryptamine. Plants containing 5-MeO-DMT have been used throughout history, and in recent years both synthetic and toad-derived 5-MeO-DMT use is being increasingly reported in naturalistic settings as well as clinical research. However, its subjective effects are not well characterised, and no qualitative research studies have been published to date. In this study, 32 psychedelic-naïve healthy participants from a double-blind, randomised, placebo-controlled, phase 1 trial of the escalating doses of a proprietary formulation of intranasal 5-MeO-DMT (BPL-003) were interviewed using the microphenomenology method shortly after dosing sessions. Microphenomenology is a qualitative research method well-suited to elucidating how subjective effects of this short-acting psychedelic unfold over time. Detailed qualitative and quantitative analysis of interview transcripts revealed a generic time-course of subjective effects, with rapid onset peaking at 8-15 min and gradual return to baseline over 45-60 min. The overall intensity of effects increased with dose and the doses tested were generally well tolerated. 5-MeO-DMT has a distinctive profile of subjective effects relative to published reports of other psychedelics, with a short duration of action, relative lack of visual effects, strong emotional or bodily experiences and the potential to elicit therapeutically relevant content, such as emotional breakthroughs and personal insights. These findings inform therapeutic applications, participant preparation, and future research on 5-MeO-DMT.