What is Arimidex?

Arimidex is a drug used to lower estrogen levels in postmenopausal women. Certain types of breast tumors require estrogen to grow in the body and Arimidex can be used to slow that growth.

Arimidex is also used to treat breast cancer in women who are post-menopause. It is often given to women whose cancer has progressed even after taking drugs to limit that progression such as tamoxifen (Nolvadex, Soltamox).

Important Information

Below are a number of key points you should consider before taking Arimidex. As with all prescription drugs, consult a medical professional prior to starting to take Arimidex.

  • You should not use Arimidex if you are allergic to anastrozole.
  • Arimidex has been shown to cause harm to an unborn baby. If you are pregnant or planning to get pregnant, do not use this medication without first consulting your doctor. You may need to take a pregnancy test prior to utilizing Arimidex just to ensure that you are not pregnant. Use effective birth control, and tell your doctor if you become pregnant during treatment.
  • You should not use this medication if you are actively breast-feeding.

What should I know before taking Arimidex?

Below are guidelines you should follow when taking Arimidex:

  • You may need take Arimidex for up to 5 years. Your doctor will provide prescription information. Follow all doctor instructions when taking Arimidex.
  • Before using Arimidex, tell your doctor if you have heart disease, circulation problems, a history of stroke of blood clot, severe liver disease, or if you have not yet completed menopause.
  • Arimidex may not work as well if you take it together with tamoxifen or an estrogen medication. Before you start taking this medication, tell your doctor if you also take any estrogen-related medications.

Frequently Asked Questions

Will Arimidex cure my cancer?

No. Arimidex is not a cure for breast cancer. It is simply meant as a means to help slow the growth of estrogen-sensitive breast cancer tumors. The treatment of your cancer is part of a much larger, more comprehensive program set by your doctor of which Arimidex might play a part.

What’s in Arimidex?

The active ingredient in Arimidex is anastrozole.

How does Arimidex work?

Arimidex works by reducing the estrogen production of certain enzymes in the body thereby reducing estrogen in the body which may slow the growth of estrogen-sensitive breast cancer tumors.

Are there any drugs I can’t take in combination with Arimidex?

Arimidex may not work as well if you take it in conjunction with any estrogen medication such as tamoxifen. Tell your doctor if you are currently taking any estrogen medication before starting Arimidex.

In short, you should discuss any drugs you are currently taking with your doctor before beginning a treatment with Arimidex Including over-the-counter, vitamins and herbal supplements. 

Can Arimidex cause an allergic reactions? If so, what are the signs?

You should seek immediate, emergency medical help if you experience any of the following allergic reactions including hives, difficulty breathing, swelling of the face, lips, tongue, or throat. 

What happens if I miss a dose of Arimidex?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up any missed doses.