Aromatase Inhibitors
Medications that block the aromatase enzyme, reducing peripheral conversion of androgens to estrogens — used in hormone-receptor-positive breast cancer, ovulation induction, and off-label TRT estradiol management.
About Aromatase Inhibitors
Aromatase inhibitors (AIs) block the cytochrome P450 enzyme aromatase, which converts androgens to estrogens in peripheral tissues. They fall into two mechanistic classes. Non-steroidal AIs (anastrozole, letrozole) bind aromatase reversibly and dominate ovulation induction and TRT estradiol control. Steroidal AIs (exemestane) bind aromatase irreversibly and are often used as switch or extended therapy in breast cancer after initial non-steroidal AI or tamoxifen. Compounding demand for AIs comes from TRT microdosing (anastrozole at sub-mg strengths), fertility protocols (letrozole in custom per-cycle strengths), and patients with excipient sensitivities or dysphagia who need dye-free capsules, oral suspensions, or sublingual troches.
Medications in This Class
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Anastrozole
Compounded anastrozole is an aromatase inhibitor prescribed primarily to men on testosterone replacement therapy (TRT) t...
Compare prices →Letrozole
Compounded letrozole is a non-steroidal aromatase inhibitor used as adjuvant therapy for hormone-receptor-positive breas...
Compare prices →Exemestane
Compounded exemestane is a steroidal aromatase inhibitor used primarily as adjuvant or extended therapy for hormone-rece...
Compare prices →Conditions Treated with Aromatase Inhibitors
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