Prozac (fluoxetine) is an SSRI antidepressant used to treat depression, OCD, panic disorder, bulimia, and PMDD by boosting serotonin levels in the brain. 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. Fluoxetine is used to treat depression, obsessive-compulsive disorder (OCD), bulimia nervosa, premenstrual dysphoric disorder (PMDD), and panic disorder. 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 What is Prozac? Prozac is the brand name for fluoxetine. Like Lexapro, Prozac helps treat depression and anxiety, and is also approved for other conditions, like panic disorder. Prozac comes in the form of an immediate-release pill, a delayed-release pill, or a liquid. Prozac (fluoxetine) is a prescription capsule used for OCD, depression, bulimia, and panic disorder. Learn about side effects, doses, its generic version, and more. 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 (bothersome thoughts that won't go away and the need to perform certain actions over and over), some eating disorders, and panic attacks (sudden, unexpected attacks of extreme fear and worry about these attacks).