Contents hide 1 Early Breast Cancer 2 Advanced or Metastatic Breast Cancer 2.1 Monotherapy 2.2 Combination therapy with aromatase inhibitor 2.3 Combination therapy with fulvestrant 3 Dosage Modifications 3.1 Dosage modifications for adverse effects 3.1.1 Combined with fulvestrant, tamoxifen, or aromatase inhibitor 3.1.2 Monotherapy Abemaciclib is used in combination with an aromatase inhibitor such as anastrozole (Arimidex), exemestane (Aromasin), or letrozole (Femara) to treat a certain type of hormone receptor-positive, early breast cancer. Abemaciclib is also used along with fulvestrant (Faslodex) to treat a certain type of hormone receptor-positive, advanced breast cancer (breast cancer that depends on hormones such as … Continue reading BESIDX (Abemaciclib)