Hi, I just completed my cancer treatments for Stage III. My DECA Scan came back with osteoporosis. My doctor also wanted me to take injections of Prolia. So far the anastrozole isn't causing any side effects but sore muscles. I'm 62/63 in February. I do not want reoccurrence. Therefore, this was an option for me that I was willing to take as my cancer was in my lymph nodes. I did say no to the injections and opted for another DEXA scan in a year. Making these decisions are so hard but speak to your oncologist about your concerns and ask why he feels you need to be on it. Good luck and best wishes.