Which antiandrogen medications may cause gynecomastia?

Updated: Mar 22, 2018
  • Author: George Ansstas, MD; Chief Editor: George T Griffing, MD  more...
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Antiandrogen/inhibitors of androgen synthesis are as follows:

  • Cyproterone acetate

  • Flutamide, bicalutamide, nilutamide

  • Finasteride, dutasteride: A study by Hagberg et al indicated that dutasteride carries a greater risk of gynecomastia than does finasteride [21]

  • Ketoconazole

  • Spironolactone

  • Tea tree oil

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