Slideshows Images Quizzes

Copyright © 2018 by RxList Inc. RxList does not provide medical advice, diagnosis or treatment. See additional information.

Arimidex vs. Aromasin

Medical and Pharmacy Editor:

Are Arimidex and Aromasin the Same Thing?

Arimidex (anastrozole) and Aromasin (exemestane) are nonsteroidal aromatase inhibitors used to treat breast cancer in postmenopausal women. Arimidex and Aromasin are often given to women whose cancer has progressed even after taking tamoxifen (Nolvadex, Soltamox).

What Are Possible Side Effects of Arimidex?

Common side effects of Arimidex include:

  • stomach upset,
  • nausea,
  • vomiting,
  • flushing (warmth, redness, or tingly feeling),
  • constipation,
  • headache,
  • confusion,
  • memory problems,
  • loss of balance or coordination,
  • blurred vision,
  • double vision,
  • eye redness,
  • lightheadedness,
  • dizziness,
  • spinning sensation,
  • drowsiness,
  • sleep problems (insomnia),
  • stuffy nose,
  • itching, or
  • rash, especially during the first few days as your body adjusts to this medication.

Tell your doctor if you experience serious side effects of Arimidex including:

  • fever,
  • chills,
  • flu symptoms,
  • slow heart rate,
  • feeling like you might pass out,
  • seizures (convulsions), or
  • jaundice (yellowing of your skin or eyes).

What Are Possible Side Effects of Aromasin?

Common side effects of Aromasin include:

  • hot flashes,
  • headache,
  • hair loss,
  • joint/bone/muscle pain,
  • tiredness,
  • anxiety,
  • unusual or increased sweating,
  • nausea,
  • upset stomach,
  • diarrhea,
  • dizziness,
  • depression, and
  • trouble sleeping (insomnia).

Tell your doctor if you have serious side effects of Aromasin including:

  • bone fractures,
  • mental/mood changes (such as depression, anxiety),
  • vaginal bleeding,
  • persistent nausea or vomiting,
  • unusual tiredness,
  • dark urine, or
  • yellowing eyes or skin.

What is Arimidex?

Arimidex (anastrozole) is a non-steroidal aromatase inhibitor used to treat breast cancer in postmenopausal women. Arimidex is often given to women whose cancer has progressed even after taking tamoxifen (Nolvadex, Soltamox). Arimidex is available in generic form.

What is Aromasin?

Aromasin (exemestane) is an antineoplastic (anticancer) agent used to treat breast cancer in postmenopausal women. Aromasin is often given to women whose cancer has progressed even after taking tamoxifen (Nolvadex, Soltamox) for 2 to 3 years.

What Drugs Interact With Arimidex?

Arimidex may interact with tamoxifen or an estrogen medication (such as hormone replacement therapy, estrogen creams, or birth control pills, injections, implants, skin patches, and vaginal rings)..

What Drugs Interact With Aromasin?

Aromasin may interact with rifampin, rifabutin, rifapentine, St. John's wort, seizure medications, bosentan, dexamethasone, barbiturates, HIV medications, or medicines to treat narcolepsy.

How Should Arimidex Be Taken?

The dose of Arimidex is one 1 mg tablet taken once a day. For patients with advanced breast cancer, the medication should be continued until tumor progression.

How Should Aromasin Be Taken?

The recommended dose of Aromasin in early and advanced breast cancer is one 25 mg tablet once daily after a meal.

Reviewed on 6/11/2018

Medical Editor: John P. Cunha, DO, FACOEP

Health Solutions From Our Sponsors