Prozac (fluoxetine) is a selective serotonin reuptake inhibitors (SSRI) antidepressant. Prozac affects chemicals in the brain that may be unbalanced in people with depression, panic, anxiety, or obsessive-compulsive symptoms. Prozac is used to treat major depressive disorder, bulimia nervosa (an eating disorder) obsessive-compulsive disorder, and panic disorder.
Prozac is sometimes used together with another medication called olanzapine (Zyprexa). to treat depression caused by bipolar disorder (manic depression). This combination is also used to treat depression after at least 2 other medications have been tried without successful treatment of symptoms.