4 doctors weighed in:
How does tamoxifen actually work?
4 doctors weighed in

2 doctors agree
In brief: Blocks estrogen
Some breast cancer cells have receptors on them that bind to estrogen in order to grow.
Tamoxifen acts as an "antagonist" and blocks estrogen from binding to these receptors on the cancer cells by binding to them first. With tamoxifen sitting in estrogen's place, the cancer cell can no longer grow.

In brief: Blocks estrogen
Some breast cancer cells have receptors on them that bind to estrogen in order to grow.
Tamoxifen acts as an "antagonist" and blocks estrogen from binding to these receptors on the cancer cells by binding to them first. With tamoxifen sitting in estrogen's place, the cancer cell can no longer grow.
Dr. Michael Zadeh
Dr. Michael Zadeh
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Dr. Eric Brown
Breast Surgery
In brief: Receptor blocker
Tamoxifen blocks the estrogen receptor present on er+ breast cancer.
It is a serm.

In brief: Receptor blocker
Tamoxifen blocks the estrogen receptor present on er+ breast cancer.
It is a serm.
Dr. Eric Brown
Dr. Eric Brown
Thank
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