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    Did you mean Estrogen Receptor Antagonist?
    GlossaryEstrogen Receptor Antagonist

    blocks estrogen from activating its cellular receptors

    An Estrogen Receptor Antagonist, also known as an Estrogen Blocker or ER Antagonist, is a substance that binds to estrogen receptors on cells and prevents estrogen from exerting its effects. This can be useful in treating conditions like hormone-sensitive cancers, such as certain types of breast cancer, by inhibiting the growth-promoting effects of estrogen on these cancer cells.

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      an estrogen promoting hair regrowth more commonly used in women

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      a synthetic anti-androgen and weak progestogen that inhibits DHT binding to androgen receptor

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      a synthetic estrogen used topically as an anti-androgen
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