Endocrine Treatment of Transsexual Persons: An Endocrine Society Clinical Practice Guideline
Serum estradiol should be maintained at the mean daily level for pre-menopausal women (<200pg/ml), and the serum testosterone level should be in
the female range (<55 ng/dl). The transdermal preparations may confer an advantage in the older transsexual women who may be at higher risk for
thromboembolic disease (92).
Hugs,
Melissa Ann