i been on prozac 10mg and i felt really good but i felt that i wanna to hurt someone even people i didn't know. I also started to drink more than i use to, i got more thirsty than before. Well i got tooken off of it because the doctor believed it caused me to hurt all those people that i hurted. After four months i got back on it because it made me feel hyper and i like it, well i got put back on it but this time it was 20mg and i still wanted to hurt people and i was still thirsty. Later i got put on 40mg and i am obsessively thirsty and i drink about really 2 gallons a day and i spend all of my money on drinks and that is all i want to do and i am tired of it. I still have a moment where i want to hit someone but i really don't want to. I think 10mg was the best mg because i felt really good and 20mg just made me feel good but not really hyper and outgoing.