Aw

- I'm sorry it didn't go better. Anti-depressants can take anywhere from 3-6 weeks to be therapeutic, so even though you may see side effects immediately (ex. drowsiness), you won't really see the true therapeutic value until later. You may see some therapeutic reaction after about a week, but still not full value. Hang in there.
I don't have much experience w/ aggression, but, there are really talented, professional dog trainers who are members here at YT - and they always give incredible advice. You might want to scan the Training section, and also maybe start a thread there.
It will get better!