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 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 capsules, USP) is a selective serotonin reuptake inhibitor for oral administration. It is also marketed for the treatment of premenstrual dysphoric disorder (Sarafem ®, fluoxetine hydrochloride). Fluoxetine is an antidepressant and belongs to a group of medicines known as selective serotonin reuptake inhibitors (SSRIs). This medicine works by increasing the activity of a chemical called serotonin in the brain. This medicine is available only with your doctor's prescription. Learn about fluoxetine (Prozac) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. 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] Defines the medication fluoxetine (Prozac, Sarafem, Prozac Weekly) a drug used in the treatment of depression, obsessive-compulsive disorders, panic attacks, and premenstrual dysphoric disorder. The article includes descriptions, uses, drug interactions, and side effects. Learn about the side effects of fluoxetine, from common to rare, for consumers and healthcare professionals. 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 a type of antidepressant called a selective serotonin reuptake inhibitor (SSRI). It's thought to work by increasing the level of serotonin (a chemical in the brain linked to mood).