Hallucinogen persisting perception disorder after psilocybin consumption: a case study
European Psychiatry June 18, 2005 Marie-Laure Espiard, Laurent Lecardeur, Pascale Abadie et al. 61 citations
Flashbacks can recur without recent hallucinogen use, a condition recognized as hallucinogen persisting perception disorder (HPPD). Perceptual disturbances may last five years or more and cause significant psychosocial distress. This report describes an 18-year-old man who developed HPPD after mixing psilocybin and cannabis, with symptomatic recurrences persisting for over eight months. The report also discusses differential diagnoses considered and the therapeutic strategies employed.