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

    3. Introductions

      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.

    4. Symptoms: Descriptions, Discussion, Debate

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

    5. Medications & Other Treatments

      The place to discuss pharmacological and other treatment options.

  3. Active and Future Research

    1. Research Articles, Publications and Studies

      Articles, publications and studies for review and discussion.

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    1. Community Open Space

      This is a location to talk about anything except your symptoms. Be respectful of other users, but any topic within the rules are open for discussion.

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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

    • Hey 😊 I was wondering if any of y’all’s symptoms get worse after hitting your head. That seems like an odd question. TMI, but over the last 25 or so years I have been punched in the head, punched in the face, and choked out. (A few bad relationships, not just by one person. If that even matters.) I also got thrown headfirst into a wall and lost consciousness for a few seconds (I think; one minute my head crashed into the wall and the next minute I was lying on my back pointed away from the wall.) I read that repeated blows to the head and strangulation, even if you don’t pass out, can cause permanent damage. Nowadays if I hit my head on something it makes my visuals a bit worse. 6 days ago I was cleaning my house and I slopped a small puddle of water on my hardwood floor. I then ended up slipping on it, flew backwards and BASHED the back of my head into the edge of my coffee table!! It hurt so bad! I went to the ER to make sure I didn’t have a fracture. I’m fine, just a knot on the back of my head and I definitely got knocked silly. The day after, I woke up and had the worst HPPD symptoms! I take Klonopin and other meds and after I took them I was ok. Does this happen to anyone else when they hit their head?
    • I became QUITE the drinker after I developed HPPD. I was even starting to drink a bit too much before that because the guy I was with at the time was basically an alcoholic and would start drinking beer like at 11 am! But I drank with him anyway. Every minute I was at his house, and I was there a lot especially because living at home SUCKED. I had a job but when I was off work I always hung out with him and drank and smoked pot. He was basically the one who introduced me to LSD. I was 19 at the time. We used to trip almost every weekend. Then drink tons of beer and smoke loads of pot to come down. My poor brain ☹️ I got HPPD in August of 1998. I was a couple months away from turning 20 and I worked at a bank as a teller. I ended up losing my job because I couldn’t think straight and I couldn’t balance my drawer. After I got HPPD, I drank a lot because it was the only way to get my mind off of it and not be completely freaked 24/7. I was ok when I was inebriated but the next day my HPPD would be worse. I guess from the alcohol. 
    • Yea, i've thought about this a lot too... I can get my anxiety down to a very low level if I am at home, alone, watching a film or playing music... My visuals and DPDR stay the same though, so I don't think anxiety directly affects the visuals.  Likewise, with alcohol, I can get both my anxiety and dpdr down quite a lot, but my visuals stay the same. 
  • Recent Status Updates

    • Spartan

      "hurt people hurt people"
      · 0 replies
    • 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
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