DMT

Intense perceptual changes can be frightening and impair awareness of surroundings. Anxiety, confusion, nausea and changes in heart rate or blood pressure may occur. Risk depends on the person, preparation and other substances. Severe agitation, overheating, seizures or reduced consciousness require urgent assessment, including consideration of co-exposures.

Human evidence on repeated, non-medical DMT use remains incomplete. Persistent psychological distress or perceptual symptoms should be assessed rather than dismissed because the acute drug effect is brief. Controlled treatment studies cannot answer all questions about repeated exposure, vulnerable populations or unknown-product impurities.

A characteristic physical withdrawal syndrome is not established, and evidence is insufficient to quantify dependence risk in UK users. Clinical assessment should focus on compulsive patterns, distress, impaired functioning and any other drugs used. A short duration of intoxication does not mean every consequence resolves quickly.

Monoamine oxidase inhibitors in ayahuasca and some changa mixtures create an additional interaction pathway, including with serotonergic medicines and stimulants. The reported UK deaths involved other serotonergic drugs, making combinations particularly relevant to assessment. People should not abruptly stop prescribed medicines to use a psychedelic; changes require their prescriber’s advice.