tamoxafin with Hysteroctomy

I had a Hyst. over 35 years ago and have since developed breast cancer. My onocoligist has put me on Tamoxifin (tamoxifen) because my cancer was hormone receptive. Do I really need to be on Tamoxifin (tamoxifen) if I have no overies or any female parts.......

[Cleveland Clinic]

Dear Pooker6668:  Tamoxifen is a selective estrogen receptor modulator, meaning that it targets estrogen in the breast independent of ovarian production of estrogen.  However, if you have had your ovaries removed, then you would be postmenopausal and could possibly take an aromatase inhibitor instead of tamoxifen.  Either way, if your breast cancer is hormone receptor positive, then hormone therapy would likely be recommended as the body does produce estrogen outside of the ovaries.  You should discuss with your doctor what drug might be best for you.

[japdip]

If you had only a Hysterectomy then only the uterus was removed and not the ovaries.