By far !. When on E's...If you don't drink enough water you dehydrate, if you drink to much you flood your brain. Cocaine...There are no real side effects...1 line roughly buzz's you for about 30 mins. You can't flood your brain or dehydrate on it...Well i certainly never have had any problems with the stuff...Yet i've known mates to be rushed into hospital through E's. I really don't like E's at all. They scare me. Cocaine is just something for raves and Football matches. Danny.