Faces of HPPD: Hallucinogen Persisting Perception Disorder Patient Survey Results and a Descriptive Analysis of Patient Demographics, Medical Background, Drug Use History, Symptoms, and Treatments
Objective: The purpose of the present study was to obtain patient information across a wide geography about medical history, drug use, symptoms, and treatments of individuals diagnosed with hallucinogen persisting perception disorder (HPPD). Methods: The study was an internet survey that yielded 26 HPPD patients from North America (81%), Europe (12%), and South America (almost 8%), predominantly male (73%), white (92%), with a median age of 24.5 (range, 18 to 63) years, who have been living with HPPD from a period of