Would have to be a ketamine binge for me. I don't know exactly how much I used but once I spent about a month sniffing ketamine all day. I probably went through nearly 100 grams over a month though, toward the end I was sniffing probably 500mg+ per line every hour. Actually it stopped working almost entirely toward the end I could hardly k hole at all anymore. I also suffered from k pains through out the month, but kept at it, because I am hopelessly addicted to ketamine when I have it, and I was living with a friend who had a fuck ton of ketmaine and who let me use as much as I wanted. Pretty much my rule for ketamine these days is to not allow myself to be in possession of more than 5 grams at a time.