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anti-estrogen

[an-tee-ES-tro-jen or an-tie-ES-tro-jen] a substance (for example, the drug fulvestrant) that blocks the effects of estrogen on tumors. Drugs such as tamoxifen interfere with estrogen’s effects by competing for it so that it can’t get to the cancer cells. These types of drugs are used to treat breast cancers that depend on estrogen for growth. See also estrogen, hormone therapy, selective estrogen receptor modulator.

Tamoxifen and raloxifene

... For this reason, tamoxifen is sometimes called an anti-estrogen. ... Like
tamoxifen, it also acts as an anti-estrogen in breast tissue. ...

http://www.cancer.org/cancer/breastcancer/moreinformation/medicinestoreducebreastcancer/medicines-to-reduce-breast-cancer-risk-tamoxifen

Hormone therapy for breast cancer

... While tamoxifen acts like an anti-estrogen in breast cells, it acts like an
estrogen in other tissues, like the uterus and the bones. ...

http://www.cancer.org/cancer/breastcancer/detailedguide/breast-cancer-treating-hormone-therapy

Hormone therapy for ovarian cancer

... ovarian cancer. Tamoxifen acts as an anti-estrogen in many tissues in
the body, but as a weak estrogen in others. The goal ...

http://www.cancer.org/cancer/ovariancancer/detailedguide/ovarian-cancer-treating-hormone-therapy

Hormone therapy for breast cancer in men

... if at all. The anti-estrogen drug, tamoxifen, is the only hormone drug
found in studies to be effective in men. If tamoxifen ...

http://www.cancer.org/cancer/breastcancerinmen/detailedguide/breast-cancer-in-men-treating-hormone-therapy

What are the risks in taking these drugs?

... drugs? Tamoxifen. Tamoxifen is a complex drug. It acts like an
anti-estrogen in some tissues, but acts like estrogen in others. ...

http://www.cancer.org/cancer/breastcancer/moreinformation/medicinestoreducebreastcancer/medicines-to-reduce-breast-cancer-risk-risks

MediaRoom - Press Releases

... how to reverse the resistance to drugs targeting estrogen resistant cancers
and use combination therapies to prevent anti-estrogen resistance or ...

http://pressroom.cancer.org/index.php?s=43&item=300

Medicines to Reduce Breast Cancer Risk

... For this reason, tamoxifen is sometimes called an anti-estrogen. ... Like
tamoxifen, it also acts as an anti-estrogen in breast tissue. ...

http://www.cancer.org/acs/groups/cid/documents/webcontent/002585-pdf.pdf

乳癌詞彙乳房解剖圖

... 抗雌激素( antiestrogen):阻斷雌激素對腫瘤作用的藥物(如tamoxifen)。抗雌激素
用來治療依靠雌激素生長的乳癌。另請參見「荷爾蒙治療」、「選擇性雌 ...

http://www.cancer.org/acs/groups/content/@healthpromotions/documents/document/acsq-021013.pdf

Understanding Hormone Therapy

... Anti-estrogen drugs, such as tamoxifen, temporarily block these receptors,
and as a result, the cancer may not grow or spread. ...

http://www.cancer.org/cancer/news/features/understanding-hormone-therapy

Male Breast Cancer Survivor Is Former Caregiver

... Baldwin, a school superintendent in Golden City, is now taking the anti-estrogen
drug tamoxifen for 5 years to reduce the risk of his cancer coming ...

http://www.cancer.org/treatment/survivorshipduringandaftertreatment/storiesofhope/male-breast-cancer-survivor-is-former-caregiver