My sister has breast cancer and is on arimidex (anastrozole). is that all she will need?

Breast cancer: I presume your sister has seen a reputable breast cancer specialist and undergone all routine work-up necessary to arrive at her diagnosis like ultasound/mri, biopsy, brca typing, etc. Reports from a monumental 5-year study of women with breast cancer has provided alternate recommendations. Granted all the above were done, your sister should do well on arimidex (anastrozole).