Fluoxetine (Prozac), an antidepressant (mood elevator), is used to treat depression, obsessive-compulsive disorders, and some eating disorders. Fluoxetine (Sarafem) is used to treat premenstrual dysphoric disorder. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. Capsules Chemical Name: FLUOXETINE ( floo-OX-uh-teen) Possible Uses of This Medication This medicine is a selective serotonin reuptake inhibitor ( SSRI) used to treat depression, obsessive-compulsive disorder ( OCD), or bulimia. More info... Before using Some medicines or medical conditions may interact with this medicine. INFORM YOUR DOCTOR OR PHARMACIST of all prescription and over-the-counter medicine that you are taking. More info... How to take this medication Follow the directions for using this medicine provided by your doctor. More info... Cautions UP TO 4 WEEKS MAY PASS before this medicine reaches its full effect. Do not stop taking this medicine without checking with your doctor. More info... Possible side effects SIDE EFFECTS, that may go away during treatment, include nervousness, trouble sleeping, headache, drowsiness, fatigue, nausea, vomiting, diarrhea, loss of appetite, dry mouth, sweating, dizziness, lightheadedness, muscle spasms, or changes in sexual function. More info... Drug interactions Drug interactions can result in unwanted side effects or prevent a medicine from doing its job.Inform your doctor about all the medicines you take with and without a prescription. Missed Dose IF YOU MISS A DOSE OF THIS MEDICINE and you are taking 1 dose daily, take the missed dose if you remember the same day. More info... Storage Store at room temperature away from sunlight and moisture. More info... Other Information If your symptoms do not improve within a few days or if they become worse, check with your doctor. More info...