I remember hearing about people chugging cough syrup for a "Robobuzz" and I could not bring myself to do it. It seemed to be the most unpleasant way of altering my state.
It was work. You had to force it down. After doing it enough times you get used to it I guess. I could never stand alcohol and never understood it... beer neither. After drinking it enough, I understood it. Definitely not a good thing on either account.