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      This is the catch-all forum for posts. Discuss anything related to Hallucinogen Persisting Perception Disorder (HPPD) here.

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      A place to introduce yourself to the community and what you hope to seek out on this site. New members may share their experience and onset of HPPD and what drug(s) triggered it.

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      What are the symptoms? What do you feel encompasses HPPD?

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  • Hallucinogen Persisting Perception Disorder (HPPD) support forum - HPPD, flashbacks, drug-induced visual snow syndrome and depersonalization/derealization.

    Common HPPD symptoms: visual snow, palinopsia (trails/afterimages), increased BFEP, increased floaters, ghosting, halos, starbursts, macropsia/micropsia, geometric hallucinations, closed-eye visuals, flashbacks, depersonalization/derealization, anxiety, depression, brain fog, cognitive dysfunction, tinnitus.

  • Recently Active Topics

  • Latest Posts

    • Long time since this thread went dormant. But there was a promising article on this from 2022:  Frontiers | Pathological Delta Oscillations in Hallucinogen Persisting Perception Disorder: A Case Report (frontiersin.org) "Two sessions of cathodal (inhibitory) transcranial direct current stimulation (tDCS) over 30 min attenuated visual hallucinations and occipital delta activity by approximately 60%. The response persisted for over four weeks." The process was as follows:  The electrodes were placed perpendicularly to the midline, such that the cathode was centered to electrode position Oz and the anode was centered to position Fpz according to the international 10–20 system. Two 30-min sessions of tDCS each were performed, separated by an intermission of 30 min. EEG was obtained immediately before the first and after the second session of tDCS.  I'm about to try it this afternoon. I've also done standard theta-burst rTMS over the dorsolateral prefrontal cortex, to great effect. Lots more energy and fewer mood impairments. A foot in the door to trying other things. Following this tDCS experiment, I'll try photobiomodulation.  
    • thanks for the advice! just wanted to return to give quick update im doing bit better now all the tips helped with meditation and running and healthy habits . the first few days were really rough . i am 2 weeks weed free and mind and body feeling better i am so much less anxious without weed thats its helped make the vision not as bad. stress and anxiety def make it worse could barely have any caffeine and was mostly sad first few days. kinda coping by having some hope itll eventually go away in long run but im def gonna stay sober which is all im really focusing on. starting calling my vision ‘ super vision’ turning it into a positive cause thats kinda what it is everything kinda looks clearer or weird and if i focus on things  which was disturbing and probably caused bad dpdr but maybe im used to it since had it for probably 6 months or so. but wasnt bad sober but would flare up when i smoke. i guess ive sorta became okay with having the vision but notice some light snow too. just gonna keep riding the out and i believe that im gonna stay sober and dont have the urge to smoke anytime soon. not looking at forums or reddit helps stress so gonna stay away from that. at first thought i needed to see doctor to get meds because i couldnt deal with this but i think i can just keep riding this out with constant exercise and healthy eating… i also think delta 8 or 0 products have some connection to hppd so i would stay away maybe you can post that somewhere else. gonna stay off for a while can check for responses but just wanted to let u guys know u helped and site gave comfort. hopefully shit goes away in long run but if not guess ill just have my super vision forever eh
    • @Jayjoe Thanks for they reply! Seems like my sleeping problems are a bit different from the ones you had. I used to have hypnagogic hallucinations, almost feeling psychotic during night, severe Insomnia etc. It seems like it has gotten a bit better but I still struggle to sleep most night and have very vivid dreams and feels like no deep sleep. Currently relying on sleep meds to be able to sleep.. I agree on the therapy part! I did ayhauaca because I thought it could make me feel better but now I feel worse than before. Of course it’s always a risk but I had no idea about HPPD  
  • Recent Status Updates

    • thequestioner827  »  David S. Kozin

      Hi David, I was wondering if you had a full text version of the paper you posted here:
      I have university access to PubMed and Medline but I'm still unable to find a full-text version, only an abstract like what is posted here.
      Thanks in advance!
      · 0 replies
    • since92  »  David S. Kozin

      Hi Dave, I see in your profile pic one of your original posts from 1999, then I see that you joined this one in 2010.  Is it possible to see posts from the forum that we all used to message on - I'm presuming that you and I were on the same one forum?   It's because another user and I are looking for people we messaged with back in 2003 but I think though that I had a different user name in those days.  Do you know of that forum and whether we can access posts from those days?  I would like to see those early posts of mine because they had a lot of info about how my HPPD developed etc..  Many thanks.
      · 0 replies
    • David S. Kozin

      Haven't slept longer than 4 hours in three days.
      My HPPD is off the charts.   will not be available at all today. Please contact Jay1 for all of your needs. 
      · 0 replies
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