Fluoxetine (Prozac) can be recommended by your doctor if you have depression, obsessive-compulsive disorder, some eating disorders, panic attacks, premenstrual dysphoric disorder symptoms, or some other conditions that need to be treated. Depending on which form of this medicine you have been prescribed you will need to take it once or twice a day, although extended-release tablets are taken once a week. Make sure you follow all the recommendations provided by your doctor. Tell your health care provider if you have any medical conditions that may be important to determine your dose, such as insulin or oral medications for diabetes, sleeping pills, medications for anxiety, tranquilizers, nonsteroidal anti-inflammatory drugs, lithium, medications for migraine headaches, medications for seizures, other antidepressants, digoxin, sedatives, antidepressants, or anticoagulants. Interactions may prevent you from enjoying all the benefits of the treatment and you will need to make sure you do not start taking any new drugs without asking your health care provider how safe it is going to be for you. Dry mouth, changes in sex drive, drowsiness, nervousness, nausea, weight loss, sore throat, loss of appetite and weakness are side effects of Fluoxetine.