Fluoxetine (Prozac) is an SSRI used to treat depression, anxiety, OCD, and more by boosting serotonin in the brain. It’s most effective when combined with therapy and may cause side effects, so it should be taken under medical supervision. 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 works by increasing the levels of serotonin, a neurotransmitter in the brain that helps regulate mood, in order to alleviate symptoms of depression, anxiety, and other related conditions. Fluoxetine (Prozac) is a medication that treats depression, anxiety, obsessive-compulsive disorder and eating disorders. It helps regulate your mood. Prozac (fluoxetine) is an SSRI antidepressant used to treat depression, OCD, panic disorder, bulimia, and PMDD by boosting serotonin levels in the brain. Fluoxetine, sold under the brand name Prozac, among others, is an antidepressant medication of the selective serotonin reuptake inhibitor (SSRI) class [2] used for the treatment of major depressive disorder, anxiety, obsessive–compulsive disorder (OCD), panic disorder, premenstrual dysphoric disorder, and bulimia nervosa. [2]. 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 how Prozac (fluoxetine) is used for anxiety, how it works, its benefits and side effects, and when it may be the right treatment option for you. 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 is used to treat depression, obsessive-compulsive disorder (OCD), bulimia nervosa, premenstrual dysphoric disorder (PMDD), and panic disorder.