Substance guide

DMT & Ayahuasca: Effects, Risks & When Use Becomes a Problem

By Gary Clinton·Cocaine & addiction specialist·Reviewed June 2026

DMT — including ayahuasca, its brewed form — is one of the most powerful psychedelics there is. Like other classic hallucinogens it isn’t addictive in the physical sense, but a drug this intense carries very real psychological risks, especially for anyone vulnerable to mental-health problems.

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What it does

DMT produces an overwhelming, immersive hallucinogenic experience — vivid visions and a dissolving sense of self. Smoked, it lasts only minutes; as ayahuasca, it can last several hours. Tolerance and physical dependence aren’t really features, which is why it isn’t "addictive" in the usual way.

Effects and real risks

Short term: profound, sometimes euphoric, sometimes terrifying experiences, a racing heart and raised blood pressure, and (with ayahuasca) intense vomiting. Risks: a frightening "trip" can be genuinely traumatic, and it can trigger or worsen anxiety or psychosis in those who are vulnerable. Ayahuasca is especially risky combined with certain antidepressants (SSRIs) and other medications — that combination can be dangerous.

When it becomes a problem

As with other psychedelics, the real risk is psychological — the effect on a vulnerable mind — rather than physical dependence.

How to get help

If you’re using DMT or ayahuasca to escape, or it’s affecting your mood or grip on things, that’s worth talking through — and if you’ve had lasting anxiety, low mood or disturbances afterwards, see your GP. Start with the assessment, or book a confidential chat.

60-second check-in

Quick check: where are you with it?

Five honest questions. Nothing is saved or sent — your result appears only on your screen.

1. Do you use more than you planned to, or carry on longer than you meant to?

2. Have you tried to cut down or stop and found you couldn't?

3. Does it take up a lot of your time, money or headspace?

4. Has it caused problems with work, money or people close to you — and you carried on anyway?

5. Do you feel low, flat, restless or anxious when you try to stop?

Gary Clinton
Gary Clinton
Ireland's cocaine addiction specialist — CBT-qualified therapist, bestselling author of Never Give Up, and in long-term recovery himself. Private one-to-one help for professionals, online and worldwide.

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