Tamoxafen to Reduce Breast Size?

Thank you for the question.

Although it would make sense,  Tamoxifen  is not used for breast reduction per say.  Surgical reduction of breast tissue remains  the gold standard.

Best wishes.

Tamoxifen is only used for breast cancer patients as therapy. It is not used for reduction of breast size.

There is a seductive simplicity in assuming that if estrogen receptors are blocked breast growth will stop and regress. Although such medications are used in the treatment and prevention of breast cancer they are NOT FDA approved for the indication you discussed. Moreover, the use of such drugs may cause a chemical induced menopause due to the loss or reduction of estrogen effects on other organs resulting in many undesired side effects. In my opinion, a surgical procedure would accomplish the goal of smaller breasts much more neatly than the premature onset of menopause due to the use of these drugs.