Basic Facts
Diagnosis
Surgical Oncology
Surgical Oncology
Medical Oncology
Chemotherapy
Chemo Guidelines
Anti-Nausea Information
Specific Drug Info
Wig Resources
Hormonal Therapy
Specific Drug Info
Radiation Therapy
Follow Up Care
Self Care and Recovery
Other Topics
Guide Glossary
Medical Oncology

Anastrozole (Arimidex®)

How does this drug work?

Arimidex® is a drug which prevents the conversion of adrenal gland androgen hormones to estrogen hormones that can cause breast cancer to grow. It is only used in women who have already gone through menopause.


Common side effects
Arimidex® is usually well tolerated.

Less common side effects with your type of chemotherapy:

  • Nausea, vomiting, and diarrhea

  • Headache, back pain

  • Hot flashes

  • Tingling or swelling of hands and feet

  • Difficulty breathing

  • Skin rash

  • Mental depression

  • Dizziness

  • Chest pain

Usual Dosing You should take 1 tablet (1-mg) by mouth daily. It may be taken with or without food at any time of the day.

As with any drug, other side effects that were not mentioned may occur


General concerns

  • Report to your doctor any side effect you may experience.

  • Report any symptoms which are unusual for you.

Other concerns with Arimidex®
Continue taking this drug even if you feel ill. Most side effects will go away with time (2-6 weeks) as your body adjusts to the medicine. However, report any side effects to your doctor.


During the day, you may reach a doctor or nurse by calling the Breast Care Center Oncology/Chemotherapy number (see phone list).

After hours and on weekends, please be sure to use the specified Oncology/Chemotherapy, as this is the ONLY number to connect you to the appropriate physician on call.