Hallucinogen use associated with later schizophrenia diagnosis: study

Psychiatrists suggest the findings may reflect patients attempting to self-treat.
Professor Colleen Loo.

Patients who present to ED after hallucinogen use are 21 times more likely to develop schizophrenia spectrum disorder within three years compared with the general population, a retrospective study suggests.

Even after adjusting for other mental health disorders and substance use, people with a hallucinogen-related ED visit had a 3.5-fold increased risk of schizophrenia, the Canadian researchers found.