Learn about cost, uses, and more of Prozac (fluoxetine), which is a prescription capsule that treats some mental health conditions. Fluoxetine (Prozac) is a prescription antidepressant used to treat depression, OCD, bulimia, panic disorder, and PMDD. Learn about uses, dosage, side effects, and warnings. In 2011 over 43 million prescriptions for antidepressants were handed out in the UK and about 14 percent (or nearly 6 million prescriptions) of these were for a drug called fluoxetine, better known as Prozac. Fluoxetine is used to treat depression, obsessive-compulsive disorder (OCD), bulimia nervosa, premenstrual dysphoric disorder (PMDD), and panic disorder. Prozac (fluoxetine) is an SSRI antidepressant used to treat depression, OCD, panic disorder, bulimia, and PMDD by boosting serotonin levels in the brain. Fluoxetine is an antidepressant medication that works in the brain. It is approved for the treatment of major depressive disorder (MDD), obsessive compulsive disorder (OCD), panic disorder, bulimia nervosa, and premenstrual dysphoric disorder (PMDD). Prozac (fluoxetine) is a prescription capsule used for OCD, depression, bulimia, and panic disorder. Learn about side effects, doses, its generic version, and more. Prozac is a prescription medicine used to treat symptoms of major depressive disorder, obsessive-compulsive disorder, panic disorder, premenstrual dysphoric disorder (PMDD), and bulimia nervosa. Learn about side effects, dosages, drug interaction, warnings, and more. Find patient medical information for Fluoxetine (Prozac, Sarafem, others) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Fluoxetine (Prozac) is a medication that treats depression, anxiety, obsessive-compulsive disorder and eating disorders. It helps regulate your mood.