<page_title> Estradiol undecylate </page_title> <section_title> Pharmacodynamics </section_title> <table> <cell> Estradiol undecylateb <col_header> Estrogen </col_header> </cell> <cell> 10–12.5 mg ≈ 40–60 days <col_header> Duration </col_header> </cell> <cell> 25–50 mg ≈ 60–120 days <col_header> Duration </col_header> </cell> </table>
A intramuscular injection of 10 to 12.5 mg estradiol undecylate has a duration of 40 to 60 days and of 25 to 50 mg estradiol undecylate has a duration of 2 to 4 months.