anastrozole (generic name)

It is used to treat breast cancer in women who have gone through menopause
(an AS troe zole)
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What is this medicine?

ANASTROZOLE (an AS troe zole) is used to treat breast cancer in women who have gone through menopause. Some types of breast cancer depend on estrogen to grow, and this medicine can stop tumor growth by blocking estrogen production.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • liver disease
  • an unusual or allergic reaction to anastrozole, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. You can take this medicine with or without food. Take your doses at regular intervals. Do not take your medicine more often than directed. Do not stop taking except on the advice of your doctor or health care professional.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine?

Do not take this medicine with any of the following medications:
  • female hormones, like estrogens or progestins and birth control pills

This medicine may also interact with the following medications:

  • tamoxifen

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular checks on your progress. Let your doctor or health care professional know about any unusual vaginal bleeding.

Do not treat yourself for diarrhea, nausea, vomiting or other side effects. Ask your doctor or health care professional for advice.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • any new or unusual symptoms
  • breathing problems
  • chest pain
  • leg pain or swelling
  • vomiting

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • back or bone pain
  • cough, or throat infection
  • diarrhea or constipation
  • dizziness
  • headache
  • hot flashes
  • loss of appetite
  • nausea
  • sweating
  • weakness and tiredness
  • weight gain

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Throw away any unused medicine after the expiration date.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Last Updated: February 27, 2009
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