"Perceptual disturbances may last for 5 years or more and represent a real psychosocial distress. We reported here a case of a 18-year-old young man presenting

"Perceptual disturbances may last for 5 years or more and represent a real psychosocial distress. We reported here a case of a 18-year-old young man presenting HPPD after a mixed intoxication with psylocibin and cannabis. This report shows symptomatic recurrences persisting more than 8 months." https://www.ncbi.nlm.nih.gov/pubmed/15963699 https://www.ncbi.nlm.nih.gov/pubmed/15963699 https://www.newyorker.com/tech/elements/a-trip-that-doesnt-end https://www.newyorker.com/tech/elements/a-trip-that-doesnt-e... "Evidence supports the association of LSD use with panic reactions, prolonged schizoaffective psychoses and post-hallucinogen perceptual disorder, the latter being present continually for as long as 5 years." https://www.ncbi.nlm.nih.gov/pubmed/8251869 https://www.ncbi.nlm.nih.gov/pubmed/8251869 "Hallucinogen-persisting perception disorder (HPPD) is a syndrome characterized by prolonged or reoccurring perceptual symptoms, reminiscent of acute hallucinogen effects. HPPD was associated with a broader range of LSD (lysergic acid diethylamide)-like substances, cannabis, methylenedioxymethamphetamine (MDMA), psilocybin, mescaline, and psychostimulants." https://www.ncbi.nlm.nih.gov/pubmed/29209235 https://www.ncbi.nlm.nih.gov/pubmed/29209235 "The Association of Salvia divinorum and Psychotic Disorders: A Review of the Literature and Case Series" https://sci-hub.tw/10.1080/02791072.2015.1073815 https://sci-hub.tw/10.1080/02791072.2015.1073815