On my 1st dose - 2.5 mg I had an inexplicably frightening, near-death "trip" while driving on a very busy highway. The only way I can explain it is to say that my body took over and wanted to crash into the center divider OR a huge truck that was next to me. MY BODY, not my mind - I don't know how else to describe it. It took every ounce of strength - mental and physical, to force myself to exit immediately and go park at the first safe place. I threw my keys to the back of my car in case I had the urge to drive again (I did not, I waited for help, cried and basically freaked out as quietly as possible).