I know this is a super old thread but I just want to comment on the tramadol doses, I have an insanely huge tolerance to most things and especially anything considered an opiate and I take doses that would blow the average drug users mind, I started taking tram daily a couple years ago, I applied my knowledge of my crazy ability to chew through anything to it and ignored warnings coz they usually mean jack shit to me, so enough about that but I often took 500mg and 600mg doses, until one day I woke up on the bathroom floor with my head/shoulders through the wall, (note that I am a 175cm tall female and I weigh 55 kgs I'm tiny but when u hit the floor deadweight u do a decent amount of damage) I was fine and I assumed I had fainted for an unknown reason and coz I never had before I went on business as usual until about 6 months later when I woke up on the work office floor with my boss sitting beside me telling me I had had a seizure, I figure that's what happened the first time, I vowed never to take 600 again and went on 400-500 but another 6 months later after a 500mg dose I was on the work floor being told I'd had another seizure, seizures are the most frightening thing ever coz it takes about ten minutes for ur brain to fully reboot I never knew where I was and I didn't recognise the person kneeling beside me, it's hard to know how frightening it is unless u experience it, I knew it was the tram but for everyone else's benefit I had a CTI brain scan and and EEG and both showed a perfect brain, that was it for me I still take it daily but never more than 400mg at a time and I have had no issues since then and it was about a year ago and yes there was so many occasions it was fine but it's not worth the risk when u could be outside on the street