How to Fix a Bad Trip? Hallucinogen Persistent Perception Disorder Treatment in Review
BJPsych Open June 1, 2026 Aleeha Batool, Chaitanya Morey
Aims: Hallucinogen Persistent Perception Disorder (HPPD) is characterised by a recurrence of hallucinogen-induced perceptual symptoms after the cessation of hallucinogen use, leading to clinically significant impairment in functioning. It remains difficult to diagnose due to multiple comorbid diagnoses and poor understanding in psychiatry. For these reasons documented incidence also remains...