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Research - Actively Recruiting
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  The approved advertisement will be listed here for all approved research.
  
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Main Forums
1. PREPARATION FOR LIVESTREAMS
  
  GUEST USERS CAN DOWNLOAD FILES
  
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2. MAIN AND GENERAL FORUM
  
  This is the catch-all forum for posts. Discuss anything related to Hallucinogen Persisting Perception Disorder (HPPD) here.
  
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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.
  
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4. Symptoms: Descriptions, Discussion, Debate
  
  What are the symptoms? What do you feel encompasses HPPD?
  
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5. Medications & Other Treatments
  
  The place to discuss pharmacological and other treatment options.
  
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Active and Future Research
1. Research Articles, Publications and Studies
  
  Articles, publications and studies for review and discussion.
  
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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.
  
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Who's Online 1 Member, 0 Anonymous, 3 Guests (See full list)
- Hppd13
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Joined Friday at 04:10 PM
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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
- 1
  
  Been ages since being diagnosed! Like 20 years
  
  By William B
  Started Friday at 06:18 PM
- 8
  
  HPPD since 1972
  
  By Lancer
  Started February 23, 2019
- 6
  
  what happened to me? Severe symptoms from shrooms
  
  By Deema
  Started March 6
- 5
  
  Possible role of Endocannabinoid system in etiology of "HPPD"
  
  By Onemorestep
  Started December 21, 2020
- 2
  
  Medications and updates
  
  By liamnugent
  Started September 17
Latest Posts
- Been ages since being diagnosed! Like 20 years
  
  By Fawkinchit · Posted 9 hours ago
  
  Wait so.... it was caused from drugs, or had a completely spontaneous random onset? I cant really tell
- HPPD since 1972
  
  By Hppd1973 · Posted Monday at 03:14 PM
  
  Yes, I was! Even today it's rare to find a Dr who understands anything about HPPD
- HPPD since 1972
  
  By Kaleidoscope · Posted Monday at 11:34 AM
  
  Thank you for sharing your story! You were very fortunate to find such a Dr. In those days!
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!
  
  May 28 · 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.
  
  May 24 · 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.
  March 24 · 0 replies

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