Hi. I was very afraid to try tamoxifen also, after reading about all of the possible side effects. My oncologist encouraged me to try it- most patients tolerate it very well. I’m happy that I have zero side effects.
As for how tamoxifen works- it does not “stop estrogen” production. Tamoxifen blocks estrogen from attaching to cancer cells. Estrogen is fully present in the body, but the drugs stop it from connecting with and fueling the tumor.
It’s an old drug that has been proven to be effective. I would encourage you to try it, if your doctor is recommending it.
Good luck. I know this is scary.