dude i took 500 or maybe 600 mg of sleep aid(no tylenal), same as motion sickness or benadril, well after a while i got kinda tired and kind of stumbled around. When it fully kicked in i would jerk my head really fast back and forth like there was someone behind me or someone in the room that was too fast for me to see. I thought i heard people calling my name, i kinda got scared and was just freakin out and wanted to leave my house, this was the third timei did it. The first time i was a lot more calm and i looked at a paper grocery bag sitting on the floor for a garbage and it started waving back and forth all calm and shit like it was blowing in the wind, but everything around it was normal. Friends have taken it and seen people who werent there n shit. I'd say try it a few times then be done with it. Peace