What are the long-term effects of Tamoxifen?
Adverse reactions to Tamoxifen are usually relatively mild and most frequently include hot flashes. However, more serious side effects can occur. Tamoxifen has been found to increase the risk of endometrial cancer and thromboembolic disease, such as pulmonary embolism (blood clot in the lung), and should only be used by patients with certain types of cancer or who are at high risk for developing breast cancer. Tamoxifen has also been shown to cause visual disturbances (e.g. cataracts) in a small percentage of women taking the drug. Other side effects may also occur. If you are taking Tamoxifen, your doctor should carefully monitor your progress to make sure that you are not experiencing any unwanted effects from the medicine.