Brand name Keppra is continuing to work wonders for me. Just a couple of things I've noted since being on it, and more specifically the brand name version.
One of the side effects of hppd I've always experienced was icons on my phone screen or letters on my phone's keyboard would always appear to be floating or shifting around. On keppra this effect has almost completely subsided. Letters and icons now appear completely stationary - glued in place if you will.
Another effect I've noticed - I can drink alcohol regularly again without it having severe consequences on my hppd. Alcohol just flows freely as it did before acquiring hppd, both in terms of how the alcohol effects me during my period of drinking, as well as the day after. My hangover feels like just an alcohol hangover, and not a full blown flare up of my hppd symptoms as it normally is. When I wake up the next morning, my hangover is specifically an alcohol hangover while my hppd symptoms pretty much remain at baseline.