Prescription
Anti-estrogen (Hormonal anticancer agent)
Tamoxifen
Last reviewed April 2026
Who is this for?
What is this drug?
Tamoxifen is a cancer medication that works by blocking the hormone estrogen from reaching breast cancer cells, which slows or stops the growth of tumors that depend on estrogen to grow.
What is it used for?
Breast cancer treatmentprevention of breast cancer in high-risk womenbreast cancer that has spread to other parts of the body
Prescription Required
A doctor's prescription is required to obtain this drug legally.