Prozac (fluoxetine) is intended for a number of psychiatric conditions, including obsessive-compulsive disorder, depression, eating disorders (bulimia, anorexia etc) and for the prevention of unpleasant symptoms of premenstrual dysphoric disorder. If you are allergic to the active ingredient of Prozac you will probably not be able to take it, as a similar reaction may occur again. Inform your health care provider of the fact of taking any of the following medications as they may cause interactions with Prozac: pimozide, thioridazine or monoamine oxidase (MAO) inhibitors, such as selegiline, tranylcypromine, isocarboxazid or phenelzine. Before you will be able to take any of these medications at least 5 weeks should pass. Prozac has been reported to cause drug interactions. If you think you may be taking some medicine that may affect your treatment, make sure your doctor knows about it. The list of drugs you should be especially careful about includes lithium, alprazolam, diuretics, antidepressants, flecainide, tranquilizers, anticoagulants, sleeping pills, tramadol, mental illness medications, vinblastine, sibutramine, insulin, nonsteroidal anti-inflammatory drugs such as aspirin and ibuprofen, drugs for migraine headaches, medications for anxiety, Parkinson's disease drugs, diazepam, sedatives, seizure medications, diabetes oral medications, phenytoin, digoxin, and a number of other medications.