This is from kevin hogan he is dr of psychology. I know some on here aren't fans of his but I think he has good information on t and has helped many people with t. Anecdotal evidence I've seen suggests t spike from anti d are temporary but I would do a bit more research into it. I'm sure others here have some experience with it.
http://www.kevinhogan.com/FAQ.htm
NOTE: For most people that are going to improve, tinnitus will INCREASE when you take an antidepressant for the first day or two or maybe even week or two. It comes back down. (You can try and keep the volume up by attending to it and avoiding the other things necessary to cause reduction!) This means the medication is doing it's job in the brain. Don't become upset when the volume increases. Assume it will. A helpful metaphor: The medication is "plowing snow from the highways" in your brain. It takes time to clear paths so they are neat and clean. Give it a few days. I remember these few days myself...they drove me nuts and weren't easy...and they were worth every