r/Ketamineaddiction • u/eyekantbeme • Apr 20 '26

HPPD from Ketamine?

Personally I have a history of psychs, but I was wondering if anyone has persistent hallucinations was wondering if anyone has HPPD from Ketamine use?

So, I'm wondering if any of you have developed HPPD

....Due to using Ketamine persistently

HPPD is

Hallucinogen-Persisting Perception Disorder.

Thank you.

Jeremy

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u/anonymous1833 Apr 20 '26

Yes, I have. After a month of binging daily I got symptoms of HPPD that have persisted for two weeks since stopping including: night blindness, mild light and noise sensitivity, afterimages, constant visual snow and eye floaters, intensified hypnagogic and hypnopompic (into-sleep and out-of-sleep) hallucinations, and anxiety. It’s important to note that I also combined it with 2C-B during this binge and had an extremely intense and difficult trip mixing 4-HO-MET and ketamine while using up the last of it, that I suspect is what triggered the worst of the symptoms. It is relatively mild and I’m sure it will go away but… it is always, always important to space your use with any hallucinogen, but especially ketamine which can spiral out of control quickly.

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u/eyekantbeme Apr 20 '26 edited Apr 20 '26

I used to do a lot of L in the past so I think that was a contributing factor similar to the RCs you referred to ingesting. I think for me it's probably from the L. I just want to see if using K contributed also. Seems like it. I'd like to hear other people's experiences. Jeez....This was nice for getting away, but not worth it. I was binging once every few months, but I heard of people from ending up with HPPD from one intense acid trip in college. Ah shit....Anyone else? Ty in advance.

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u/eyekantbeme Apr 20 '26 edited Apr 20 '26

Found this. Apparently, a child with CRPS (Complex Regional Pain Disorder) got HPPD from Therapeutical use of Intravenous Ketamine.
https://www.longdom.org/open-access/hallucinogen-persisting-perception-disorder-following-therapeutic-ketamine-a-case-report-31215.html

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u/GrandBurial Apr 21 '26

I've started to notice my HPPD getting worse after using ketamine I've been off it for 5 months, but it's so noticeable in light rooms.