The peer-reviewed Therapeutic Advances in Psychopharmacology journal recently published the study ‘Ayahuasca dimethyltryptamine, and psychosis: a systematic review of human studies’ by Rafael G. dos Santos, José Carlos Bouso, Jaime E. C. Hallak. The researchers did a case-study on psychotic incidents after ayahuasca and DMT intake. They conclude:
“Overall, the incidence of such episodes appears to be rare in both the ritual and the recreational/noncontrolled settings. Performance of a psychiatric screening before administration of these drugs, and other hallucinogens, in controlled settings seems to significantly reduce the possibility of adverse reactions with psychotic symptomatology. Individuals with a personal or family history of any psychotic illness or nonpsychotic mania should avoid hallucinogen intake.”
If your interested in this dimension of the ayahuasca experience you can read the abstract and full text at Sage Journals.