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. Prozac (fluoxetine) is a widely prescribed antidepressant, helping millions of people manage depression, anxiety, OCD, and other mental health conditions. While Prozac can be highly effective, understanding what side effects to expect and when they typically occur can help you prepare for treatment and know when to contact your healthcare provider. Learn about cost, uses, and more of Prozac (fluoxetine), which is a prescription capsule that treats some mental health conditions. Fluoxetine is used to treat depression, obsessive-compulsive disorder (OCD), bulimia nervosa, premenstrual dysphoric disorder (PMDD), and panic disorder. Learn about the side effects of Prozac (fluoxetine), from common to rare, for consumers and healthcare professionals. Prozac (fluoxetine) is an SSRI antidepressant used to treat depression, OCD, panic disorder, bulimia, and PMDD by boosting serotonin levels in the brain. Prozac is a medication used to treat depression. Learn about the pros and cons of Prozac, including its uses, side effects, and how to take and store it properly. 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. Find patient medical information for Fluoxetine (Prozac, Sarafem, others) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings 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.