Sorry for the english, i'm writing through google translate
I have HPPD 5 years. My visual symptoms were minimal. I suffered because of dp, dr and anxiety.
After abrupt cancellation of Pregabalin (took 450mg per day, 10 days), my HPPD increased by 3.4 times. These are visual symptoms (snow, trails, movement of objects).
Then I started taking Lamotrigine, which improved my visual symptoms by 30%. (especially removed the movement of objects). Returned direct thinking. I want to try Keppru.
Be careful when taking medication and cancellation!