Generic Prozac or Generic Fluoxetine is also known as Antidepressant Fluoxetine useful to treat depression obsessive-compulsive disorder bothersome thoughts that wont 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. Prozac Fluoxetine Sarafem is used to relieve the symptoms of premenstrual dysphoric disorder including mood swings irritability bloating and breast tenderness. Fluoxetine is in a class of medications called selective serotonin reuptake inhibitors SSRIs. It works by increasing the amount of serotonin a natural substance in the brain that helps maintain mental balance.