So I was on 60 mg of Prozac daily, dropped to 40 mg for a week, then to 20 mg for a week, and today is the first day w/o it. I've taken my tramadol a few times since being on the Prozac, and have noticed it doesn't do much for me like it did, I was sure it wasn't tolerance, so I did research and it wasn't. It was because Prozac (fluoxetine) uses enzyme CYP2D6, and clears 50 % to 80 % of it! This is what tramadol uses to metabolize into o-desmethyltramadol (the good stuff). So I knew fluoxetine and norfluoxetine (its metabolite) had a long half life, but I was reading it is ridiculously longer than I thought. Like I said today is my first day w/o a dose of fluoxetine, how long must I wait until my liver can handle the tramadol and metabolize it properly?
