How quickly does Arimidex lower estrogen?
Arimidex
Medications
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Open Aug 19, 2026 - 11:35 AM
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Aug 19, 2026 - 11:35 AM
Arimidex (anastrozole) begins to lower estrogen levels within hours of the first dose, with significant reductions—up to 80%—typically seen within 24 to 48 hours. Maximum suppression of estrogen is usually achieved within a few days of continuous daily use.
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