Switching from Tamoxifen to Letrozole and Estradiol Level

SoffeeH

Hi All,

I had took tamoxifen+zoladex for 3 months and my oncologist had me switched to letrozole(femara)+zoladex since the end of July without testing estradiol levels. I'm 40 yrs old now, I wonder if I am considered as menopausal after only 3 shots of zoladex. What would be the right range of estradiol levels if the function of the ovarian are sufficiently suppressed (by zoladex)? Since I read some articles about having somewhat high estradiol level and being on an aromatase inhibitor can actually increase the risk of recurrence. I feel really confused about switching to letrozole this fast...

Thank you all~