Prozac is a common antidepressant that can be very effective for treating major depression and anxiety. However, it can also cause withdrawal symptoms when it is stopped suddenly. These symptoms can range from mild to severe, and they can last for several weeks or even months.
According to a 2019 review of existing research reports, 56% of people experience withdrawal effects when stopping antidepressants. About 46% of these individuals report “severe” symptoms. One of the studies in the review found that out of 95 people who abruptly stopped taking fluoxetine (Prozac), 67% experienced withdrawal symptoms.