Hallucinogen Persisting Perception Disorder

Understanding Hallucinogen Persisting Perception Disorder Hallucinogen Persisting Perception Disorder (HPPD) is a rare condition that affects individuals who have used hallucinogenic substances in the past. It is characterized by the re-experiencing of perceptual disturbances, also known as flashbacks, long after the drug has been discontinued. These flashbacks can be distressing and interfere with daily life. […]