Nolvadex (tamoxifen) is commonly prescribed for patients who had an operation to treat early breast cancer and is also efficient in the prevention of breast cancer in females that are likely to get it - due to their age, health condition and family medical history. If you are also taking any other medicines at the moment make sure your health care provider knows about each and every one of them. Please mention any of the following: bromocriptine, anastrazole, medroxyprogesterone, phenobarbital, cancer chemotherapy medication, rifampin, and aminoglutethimide. While taking Nolvadex you need to watch carefully for any suspicious and serious side effects that you will need to report as soon as possible to your doctor. These include jaundice, blisters, swelling, fever, loss of appetite, thirst, unusual bruising or bleeding, vision problems, rash, restlessness, and muscle weakness.