"after taking prozac successfully for about 10 years, i talked with my doctor about switching to a different anti-depressant because i missed having a sex-drive.  after a year on citalopram, there was no change.  so i switched to bupropion.  it caused me to feel very depressed and extremely anxious.  i am well aware that anti-depressants take several weeks to have positive effects and that the side effects also tend to go away.  so i stuck with the bupropion for 6 weeks.  it just got worse and worse and i started to feel suicidal for the first time in my life.  i have been back on prozac now for 2 weeks and am feeling a little better. stopping prozac just to try to get sex drive back was a big mistake."