Has anyone experienced breast enlargement due to hormone therapy used to treat stage 4 prostate cancer. I recently discontinued the use of Zytiga (Abiraterone) due to shortness of breath, and breast enlargement. My breathing was completely restored within 48 hours of discontinuing Zytiga, however the breast enlargement has not abated after one month. Has anyone heard of any treatments that would restore the breasts to normal size. Thank you. Philnob.