Jump to content


  1. Research - Actively Recruiting

    1. Research Advertisements

      The approved advertisement will be listed here for all approved research.

  2. Main Forums




      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.

  4. Community Area

    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.

    2. Forum Information, Questions and Suggestions

      Is the forum missing something? Do you have any ideas or suggestions? Any problems or questions? Post them here.

  • Who's Online   0 Members, 0 Anonymous, 5 Guests (See full list)

    • There are no registered users currently online
  • Member Statistics

    Total Members
    Most Online
    Scaleup Solution
    Newest Member
    Scaleup Solution
  • Forum Statistics

    Total Topics
    Total Posts
  • 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

    • The 2012 study on Lamotrigine is just a case study involving one 33 year old woman.  There are no controls and little to no empirical data.  I read it over very carefully and the text contradicts itself... in one section they talk about possible full remission of something, "the patient experienced significant relief from her symptoms, some of which disappeared completely", in the other " after images, halos, and ‘glow worm’ effects occurred less frequently."  Is it less frequent or disappeared completely?  What disappeared completely?  There are also quotes in there about flashbacks that lead me to believe the author knows next to nothing about HPPD. You know, I've been looking at studies like this for 25 years and I've grown to have little patience for many of them.  I'm grateful that some medical practitioners are devoting time to publishing these articles, they open the door to a tiny glimmer of hope for some people with an expanded set of treatment options, but studies like this are hardly useful overall.  Many people who are heavily dosed on psychotropic meds may simply no longer pay as much attention to their problems as they have before... it's much like the way SSRIs have been established to work, i.e. as emotion-deadening agents and not playing any causative role in the treatment of depression itself.  After reading this study and checking some of the anecdotal messages on this forum I don't have a high confidence in Lamotrigine.  I would be pleased to be proven wrong with more data.
    • https://www.medicalnewstoday.com/articles/320181#management-and-treatment I also read about some clinical study paper but maybe I will find it later and post it.  
  • 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
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.