I tried sulbutiamine for approximately one week. Definitely noticed increased energy, stamina, and motivation. I'm usually pretty spent after work, but on it I found absolutely no issues of hitting the gym at 7pm and pushing decent weights. But on some days, it felt like someone had taken a sledgehammer to my head; my mind felt noticeably clouded and slower. I don't know if the cloudedness is related to my lack of supplementing on choline or not, because I've been also taking piracetam along with sulbutiamine.

I might give it another short sometime.