I think I've seen someone from my country who succeeded by taking the contents of 6-7 tabs, but the way it kills you is by organ failure, which renders you in excruciating pain and as someone has already said it, it can take up to weeks to get the job done. As far as I am concerned, it's quite irreversible once the process kicks in, the person was just hospitalized and monitored, but it's a horrible way to go.