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    Did you mean Estrogen Receptor Antagonist?
    Glossary Estrogen 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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    1. Clascoterone Topical androgen-receptor blocker, approved as an acne cream
    2. Spironolactone Blood-pressure and diuretic drug with anti-androgen effects
    3. HMI-115 Experimental antibody that blocks the prolactin receptor
    4. GT20029 Experimental topical drug designed to break down androgen receptors
    5. Cyproterone a synthetic anti-androgen and weak progestogen that inhibits DHT binding to androgen receptor