Be very careful though. Petroleum ether is a dangerous solvent which can damage very severely your brain, even though I never truly experienced after-effects from petroleum ether. The only times I noticed after effects was 3 to 4 months after I stopped taking it. I woke up in my bed in the middle of the night, completely paralysed, hearing a little girl’s voice making a conversation on her own, the same conversation that I thought I used to hear all the time when other people where talking around me while I was on petroleum ether. I could not see her cause she was in the dark and I tried to reach for the switch of my lamp, but I found myself unable to move. The little girl kept on talking, finishing that conversation which always use to stop at a certain point. Eventually I was able to move and switch on the light, but that was after the little girl’s voice had disappeared. Other side effects consisted of feeling as if I had taken petroleum ether while I smoked weed. That went on for a year or so. Now I feel mostly cleared from petroleum ether, but sometimes I feel that chill in the spine, that indescribable feeling all over, that floating feeling, that weird vision, and that weird but lovely taste in the back of your mouth, than I know hat my brain has been permanently affected by petroleum ether.