Eating a healthy diet can help too. Anastrozole was associated with a 17% reduction in the risk of recurrence and a 58% decrease in the risk of contralateral breast cancer compared with tamoxifen. Being physically active may help with the pain and keep your joints flexible. If this happens, tell your doctor so they can give you painkillers. If you are also having treatment with other cancer drugs, you may have some side effects that we have not listed here.You will see a doctor, nurse or pharmacist regularly while you are having this treatment. However, there were notably more side effects experienced by patients treated with megestrol acetate, particularly increased weight gain, dyspnea, and peripheral edema.Overall these agents are well tolerated. Rarely, these may be life-threatening. Chemotherapy has the greatest impact on immunity, but surgery and some forms of radiation therapy can affect your immune system, too. However, certain breast cancer treatments can weaken your immune system, leaving you more vulnerable to infection. Results generated with our FBA suggest that atrazine possibly also exerts a direct influence on the ovary (Exemestane and anastrozole are not currently FDA approved for breast cancer risk reduction. We explain the most common side effects of this treatment here. Data sources include IBM Watson Micromedex (updated 2 Sep 2020), Cerner Multum™ (updated 1 Sep 2020), … Fadrozole, formestane, aminoglutethimide, and vorozole were all studied and used to treat advanced breast cancer but are no longer clinically available. You can buy these from a chemist, or your doctor can prescribe them. Try taking your anastrozole tablets with food or at night.This is usually mild. You may have other types of hormone therapy if you have not been through the menopause.. You take it once a day, with or without food. We also include some less common side effects.You may get some of the side effects we mention, but you are unlikely to get all of them. This therapy can be helpful in patients who have an expected survival longer than 3 months and who have poorly controlled pain and suffer from opioid-related toxicity.