Locally advanced or metastatic, hormone-dependent prostate cancer. Concomitant to & following RT in patients w/ high-risk localized or locally advanced prostate cancer. 3.75 mg: Endometriosis. Pituitary down-regulation in the context of assisted reproduction technology. Adjuvant treatment, in combination w/ tamoxifen or an aromatase inhibitor (AI), hormone receptor +ve early stage breast cancer in women at high risk of recurrence who are confirmed as premenopausal after completion of chemotherapy. 22.5 mg: Central precocious puberty (CPP) in childn ≥2 yr w/ onset of CPP before 8 yr in girls & 10 yr in boys.