Dear smokey 234: All of these drugs are
selectiveSelective mutism
Selective mutism - resources estrogenHormone replacement therapy receptor modulators. They work in slightly different ways.
TamoxifenTamoxifen
Tamoxifen citrate has been around the longest. This is the only drug that should be used in premenopausal women. Both arimidex and femara are aromatase inhibitors. These are recently approved in postmenopausal women after a study using arimidex showed some advantage to using this drug in postmenopausal women. So, it depends a bit on your situation. If you are premenopausal, you should be taking tamoxifen. If you are postmenopausal, there may be some advantage to arimidex or femara.