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| Other drug names: | A-Am An-Az B C-Ch Ci-Cz D-Dh Di-Dz E F G H I-J K-L M-Mh Mi-Mz N-Nh Ni-Nz O P-Pl Pm-Pz Q-R S-Sn So-Sz T-To Tp-Tz U-V W-Z 0-9 |
| Contents of this page: | |
Some commonly used brand names are:
In the U.S.--
In Canada--
Anastrozole (an-ASS-troh-zole) is a medicine that is used to treat breast cancer.
Many breast cancer tumors grow in response to estrogen. This medicine interferes with the production of estrogen in the body. As a result, the amount of estrogen that the tumor is exposed to is reduced, limiting the growth of the tumor.
This medicine is available only with your doctor's prescription, in the following dosage form(s):
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For anastrozole, the following should be considered:
Allergies--Tell your doctor if you have ever had any unusual or allergic reaction to anastrozole. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes.
Pregnancy--Anastrozole has not been studied in pregnant women. However, studies in animals have shown that anastrozole causes miscarriages, decreased weight or death of the fetus, and problems with bone formation. Be sure that you have discussed this with your doctor before taking this medicine. Tell your doctor right away if you think you have become pregnant while taking anastrozole.
Breast-feeding--It is not known whether anastrozole passes into the breast milk. However, anastrozole is not recommended during breast-feeding because it may cause unwanted effects in nursing babies.
Children--Studies on this medicine have been done only in adult patients, and there is no specific information comparing use of anastrozole in children with use in other age groups.
Older adults--This medicine has been tested in a limited number of patients 65 years of age or older and has not been shown to cause different side effects or problems in older people than it does in younger adults.
Other medicines--Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your health care professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.
Other medical problems--The presence of other medical
problems may affect the use of anastrozole. Make sure you tell your doctor
if you have any other medical problems. Take this medicine only as directed by your doctor.
Do not use more
or less of it, and do not use it more often than your doctor ordered. Anastrozole sometimes causes nausea, vomiting, and diarrhea. However, it
is very important that you continue to use the medicine, even if you begin
to feel ill. Ask your doctor, nurse, or pharmacist for ways to lessen these
effects. Dosing--The dose of anastrozole will be different for
different patients. Follow your doctor's orders or the
directions on the label
. The following information includes only the
average doses of anastrozole. If your dose is different,
do not change it
unless your doctor tells you to do so.
Proper Use of This Medicine
Missed dose--If you do miss a dose of this medicine, do not take the missed dose at all and do not double the next one. Instead, go back to your regular dosing schedule and check with your doctor.
Storage--To store this medicine:
It is important that your doctor check your progress at regular visits to make sure this medicine is working properly and to check for unwanted effects.
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
More common
Chest pain; shortness of breath; swelling of feet or lower legs
Check with your doctor as soon as possible if any of the following side effects occur:
Less common
Cough or hoarseness; difficult or painful urination; dizziness, severe; fever or chills; headache, continuing; increased blood pressure; lower back or side pain; pain, tenderness, bluish color, or swelling of foot or leg; sore throat; sudden shortness of breath; unusual tiredness or weakness; vaginal bleeding (unexpected and heavy)
Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:
More common
Back pain; body aches or pain; bone pain; congestion; constipation; cough; diarrhea; dizziness; dry mouth; dryness or soreness of throat; feeling of warmth; fever; flushing or redness of skin, especially on face and neck; headache; hoarseness; hot flashes; increased appetite; loss of appetite and weoght loss; mood or mental changes; nausea or vomiting; pain, general; pelvic pain; runny nose; skin rash; stomach pain; sweating; tender, swollen glands in neck; trouble in swallowing; voice changes; weakness
Less common
Anxiety and confusion; breast pain; chills; cough or a cough producing mucus; diarrhea; difficulty breathing; dryness of the vagina; fever; general feeling of discomfort or illness; headache; itching of skin; joint pain; loss of appetite; loss of hair; muscle pain; nausea; nervousness; numbness or tingling of hands or feet; shivering; shortness of breath; sleepiness or unusual drowsiness; sore throat; stuffyor runny nose; sweating; tightness in chest; trouble sleeping or sleeplessness; unusual tiredness or weakness; vaginal dryness; vomiting; weight gain; wheezing
Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your health care professional.
Developed: 08/13/1998
Revised: 11/22/2000
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