I couldn't answer that question . I do know maoi's don't mix well with alot of medicine.
Can you see a doctor about this? I don't feel comfortable even suggesting a time frame.
Sorry i couldn't be of help, hopefully someone more knowledgeable about this will chim in
**I did find this regarding the 1/2 life and its usually 5× the 1/2 life to be out of your system
"With time, fluoxetine and norfluoxetine inhibit their own metabolism, sofluoxetine elimination half-lifechanges from 1 to 3 days, after a single dose, to 4 to 6 days, after long-term use. Similarly, the half-life of norfluoxetine is longer (16 days) after long-term use."